- Bartels, J. M., and G. N. Lanier. 1974. Emergence and mating in Scolytus multistriatus (Coleoptera: Scolytidae) . Entomological Society of America, Annals 67:365-370.
- Sahota, T. S., F. G. Peet, and P. H. Bartels. 1984. Progress towards early detection of population quality differences in bark beetles (Coleoptera: Scolytidae) . Canadian Entomologist 116:481-486.
- Francke, W., J. Bartels, H. Schmutzenhofer, U. Kohnle, and J. P. Vite. 1988. The odor-bouquet of Ips schmutzenhoferi Holschuh (Col: Scol) . Zeitschrift fur Naturforschung, C (Biosciences) 43:958-960.
- Francke, W., M. L. Pan, J. Bartels, W. A. Konig, J. P. Vite, S. Krawielitzki, and U. Kohnle. 1986. The odour bouquet of three pine engraver beetles (Ips spp) . Journal of Applied Entomology 101:453-461.
- Klimetzek, D., J. Bartels, and W. Francke. 1989. The pheromone system of the elm bark beetle Pteleobius vittatus F (Coleoptera: Scolytidae) . Journal of Applied Entomology 107:518-523.
- Kohnle, U., J. P. Vite, C. Erbacher, J. Bartels, and W. Francke. 1988. Aggregation response of European engraver beetles of the genus Ips mediated by terpenoid pheromones . Entomologia Experimentalis et Applicata 49:43-54.
- Payne, T. L., R. F. Billings, J. D. Delorme, N. A. Andryszak, J. Bartels, W. Francke, and J. P. Vite. 1987. Kairomonal-pheromonal system in the black turpentine beetle, Dendroctonus terebrans (Ol) . Journal of Applied Entomology 103:15-22.
- Francke, W., J. Bartels, S. Krohn, S. Schultz, E. Baader, J. Tengo, and D. Schneider. 1989. Terpenoids from bark beetles, solitary bees and danaine butterflies . Pure and Applied Chemistry 61:539-542.
- Kohnle, U., A. Pajares, J. Bartels, H. Meyer, and W. Francke. 1993. Chemical communication in the European pine engraver, Ips mannsfieldi (Wactl) (Col, Scolytidae) . Journal of Applied Entomology 115:1-7.
- Francke, W., J. Bartels, H. Meyer, F. Schroder, U. Kohnle, E. Baader, and J. Vite. 1995. Semiochemicals from bark beetles: New results, remarks, and reflections . Journal of Chemical Ecology 21:1043-1063.