- Schmitz, E. 1898. Os coleopteros da Madeira [Scolytidae, p 157]. Annales de Sciences Naturaes, Porto4:147-155(1897), 5:57-64, 153-159 (1898).
- Schmitz, R. F. 1972. Behavior of Ips pini during mating, oviposition, and larval development (Coleoptera: Scolytidae) . Canadian Entomologist 104:1723-1728.
- Lanier, G. N., M. C. Birch, R. F. Schmitz, and M. M. Furniss. 1972. Pheromones of Ips pini (Coleoptera: Scolytidae): variation in response among three populations. Canadian Entomologist 104:1917-1923.
- Buyckx, E. J., G. Schmitz, and P. Crisinel. 1954. Note sur les essais de mecanisation de la desinsectisation des cafeieres congolaises . Agronomie Tropicale 9:732-733.
- Furniss, M. M., L. N. Kline, R. F. Schmitz, and J. A. Rudinsky. 1972. Tests of three pheromones to induce or disrupt aggregation of Douglas-fir beetles (Coleoptera: Scolytidae) on live trees . Entomological Society of America, Annals 65:1227-1232.
- Furniss, M. M., and R. F. Schmitz. 1971. Comparative attraction of Douglas-fir beetles to frontalin and tree volatiles. United States Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, Research Paper INT-96. 16 p.
- Johnson, P. C., and R. F. Schmitz. 1965. Dendroctonus ponderosae Hopk. (Coleoptera: Scolytidae) a pest of western white and ponderosa pines in the northern Rocky Mountains. United States Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station 4500-FS-INT-2202.
- Kline, L. N., R. F. Schmitz, J. A. Rudinsky, and M. M. Furniss. 1974. Repression of spruce beetle (Coleoptera) attraction by methylcyclohexenone in Idaho . Canadian Entomologist 106:485-491.
- Rudinsky, J. A., M. M. Furniss, L. N. Kline, and R. F. Schmitz. 1972. Attraction and repression of Dendroctonus pseudotsugae (Coleoptera: Scolytidae) by three synthetic pheromones in traps in Oregon and Idaho . Canadian Entomologist 104:815-822.
- Sartwell, C., R. F. Schmitz, and W. J. Buckhorn. 1971. Pine engraver, Ips pini, in the western states. United States Department of Agriculture, Forest Service, Forest Pest Leaflet 122. 5 p.
- Schmitz, G. 1958. Quelques observations effectuees dans le nord du Congo beige sur les epicampopteres ennemis des cafeiers . Bulletin INEAC 7:261-266.
- Schmitz, G., and P. Crisinel. 1957. La lutte contre Stephanoderes hampei Ferr. Publ. Inst. nat. agron. Congo Beige Ser. Sci. (70):1-156.
- Schmitz, R. F. 1965. The effect of competition on the population dynamics of the Douglasfir beetle, Dendroctonus pseudotsugae Hopk., in Oregon. Unpublished thesis, Oregon State University, Corvallis.
- Schmitz, R. F. 1969. Bark beetle rearing. Pages 51-52 in Twentieth annual Western Forest Insect Work Conference, Proceedings, Coeur d'Alene, Idaho, 10-13 March 1969. Canada Department of the Environment, Canadian Forestry Service, Forest Research Laboratory, Victoria, British Columbia. 96 p.
- Schmitz, R. F. 1972a. A fiberglass cage for rearing bark beetles in small log sections. United States Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, Research Note INT-154. 4 p.
- Schmitz, R. F. 1972b. Behavior of Ips pini during mating, oviposition, and larval development (Coleoptera: Scolytidae) . Canadian Entomologist 104:1723-1728.
- Schmitz, R. F. 1980. Dispersal of pine engraver beetles in second growth ponderosa pine forests. Pages 41-50 in A. A. Berryman and L. Safranyik (eds.), Proceedings of the Second IUFRO conference on dispersal of forest insects: evaluation, theory and management implications. Washington State University Cooperative Extension Service, Pullman. 278 p.
- Schmitz, R. F. 1984. A passive aerial barrier trap suitable for sampling flying bark beetles. United States Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, Research Note INT-3488. 8 p.
- Schmitz, R. F. 1986. Effect of life cycle duration on factors limiting survival of the mountain pine beetle. Pages 25-36 in P. M. Hall and T. F. Maher (eds.), Mountain pine beetle symposium proceedings, Smithers, B. C, 1985. British Columbia Ministry of Forests, Pest Management Report 7.
- Schmitz, R. F., and M. M. Furniss. 1968. Secondary sex characters of Scolytus laricis . Entomological Society of America, Annals 61:1626-1627.
- Schmitz, R. F., M. D. McGregor, and G. D. Amman. 1980. Mountain pine beetle response to lodgepole pine stands of different characteristics. Pages 234-243 in A. A. Berryman and L. Safranyik (eds.), Proceedings of the second IUFRO conference on dispersal of forest insects: evaluation, theory and management implications. Washington State University, Cooperative Extension Service, Pullman. 278 p.
- Schmitz, R. F., and J. A. Rudinsky. 1968. Effect of competition on survival in western Oregon of the Douglas-fir beetle, Dendroctonus pseudotsugae Hopkins (Coleoptera: Scolytidae). Oregon State University, School of Forestry, Forest Research Laboratory, Research Paper 8. 42 p.
- Schmitz, R. F., and A. R. Taylor. 1969. An instance of lightning damage and infestation of ponderosa pines by the pine engraver beetle in Montana. United States Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, Research Note INT-88. 8 p.
- Tkacz, B. M., and R. F. Schmitz. 1986. Association of an endemic mountain pine beetle population with lodgepole pine infected by Armillaria root disease in Utah. United States Department of Agriculture, Forest Service, Intermountain Region, Research Note INT-353. 7 p.
- Amman, G. D., M. D. McGregor, R. F. Schmitz, and R. D. Oakes. 1988. Susceptibility of lodgepole pine to infestation by mountain pine beetles following partial cutting of stands . Canadian Journal of Forest Research 18:688-695.
- Amman, G. D., and R. F. Schmitz. 1988. Mountain pine beetle-lodgepole pine interactions and strategies for reducing tree losses . Ambio 17:62-68.
- Amman, G. D., R. W. Thier, M. D. McGregor, and R. F. Schmitz. 1989. Efficacy of verbenone in reducing lodgepole pine infestation by mountain pine beetles in Idaho . Canadian Journal of Forest Research 19:60-64.
- McGregor, M. D., G. D. Amman, R. F. Schmitz, and R. D. Oakes. 1987. Partial cutting lodgepole pine stands to reduce losses to the mountain pine beetle . Canadian Journal of Forest Research 17:1234-1239.
- Schmitz, R. F. 1988a. Understanding scolytid problems in lodgepole pine forests: the need for an integrated approach. Pages 231-245 in T. L. Payne and H. Saarenmaa, Integrated control of scolytid bark beetles. Virginia Polytechnic and State University, Blacksburg, Virginia. 355 p.
- Schmitz, R. F. 1988b. Understanding scolytid problems in lodgepole pine forests: the need for an integrated approach . International Congress of Entomology, Proceedings 18:414.
- Schmitz, R. F. 1989. Efficacy of verbenone for preventing infestation of high-value lodgepole pine stands by the mountain pine beetle. Pages 75-80 in G.D. Amman, Proceedings: Management of lodgepole pine to minimize losses to the mountain pine beetle: symposium proceedings. United States Department of Agriculture, Forest Service, Intermountain Research Station, Ogden, Utah, General Technical Report INT-262. 119 p.
- Schmitz, R. F., M. D. McGregor, G. D. Amman, and R. D. Oakes. 1989. Effect of partial cutting treatments of lodgepole pine stands on the abundance and behavior of flying mountain pine beetles . Canadian Journal of Forest Research 19:566-574.
- Tkacz, B., and R. F. Schmitz. 1986. Association of an endemic mountain pine beetle population with lodgepole infected by Armillaria root disease in Utah. United States Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, Ogden, Utah, Research Note INT-353. 7 p.
- Whitehead, A. T., D. T. Scott, R. F. Schmitz, and K. Mori. 1989. Electroantennogram responses by mountain pine beetles, Dendroctonus ponderosae Hopkins, exposed to selected chiral semiochemicals . Journal of Chemical Ecology 15:2089-2100.
- Gibson, K., R. Schmitz, G. Amman, and R. Oakes. 1991. Mountain pine beetle response to different verbenone dosages in pine stands of western Montana. United States Department of Agriculture, Forest Service, Intermountain Research Station (Ogden, UT), Research Paper INT-444.
- Hagle, S., and R. Schmitz. 1993. Managing root disease and bark beetles. Pages 209-228 In T.D. Schowalter and G.M. Filip (eds.), Beetle-pathogen interactions in conifer forests. Academic Press: London.
- Nebeker, T., and R. Schmitz. 1992. Host reactions to microorganisms and "hammering": mountain pine beetle and southern pine beetle experiences. Page 155 In Douglas C. Allen and L.P. Abrahamson (eds.), Proceedings: North American Forest Insect Work Conference, Denver, Colorado, March 25-28, 1991. United States Department of Agriculture, Forest Service, Pacific Northwest Research Station (Portland, OR), General Technical Report PNW-GTR-294.
- Schmitz, R., and M. McGregor. 1990. Antiaggregative effect of verbenone on response of the mountain pine beetle to baited traps. United States Department of Agriculture, Forest Service, Intermountain Research Station (Ogden, UT), Research Paper INT-423
- Bartos, D., and R. Schmitz. 1998. Characteristics of endemic-level mountain pine beetle populations in south-central Wyoming. United States Department of Agriculture, Forest Service, Rocky Mountain Research Station (Fort Collins, CO), Research Paper RMRS-RP-13. 9 pp.
- Nebeker, T., R. Schmitz, R. Tisdale, and K. Hobson. 1995. Chemical and nutritional status of dwarf mistletoe, Armillaria root rot, and Comandra blister rust infected trees which may influence tree susceptibility to bark beetle attack . Canadian Journal of Botany 73:360-369.
- Schutz, S., B. Weissbecker, H. Hummel, K. Apel, and H. Schmitz. 1999. Insect antenna as a smoke detector . Nature (London) 398298-299,6725.