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- Ericsson, A., C. Hellqvist, B. Langstrom, S. Larsson, and O. Tenow. 1985. Effects on growth of simulated and induced shoot pruning by Tomicus piniperda as related to carbohydrate and nitrogen dynamics in Scots pine . Journal of Applied Ecology 22:105-124.
- Hellqvist, C. 1984. Produktion av storre margborre i tallstubbar [Production of Tomicus piniperda in pine stump]. Sveriges Skogsvardsforbunds Tidjskrift, nr. 1.
- Langstrom, B. E., and C. Hellqvist. 1985. Pinus contorta as a potential host for Tomicus piniperda L. and Tomicus minor (Hart.) (Col., Scolytidae) in Sweden. Journal of Applied Entomology 99:174-181.
- Langstrom, B. E., and C. Hellqvist. 1988a. Scots pine resistance against Tomicus piniperda as related to tree vitality and attack density. Pages 121-133 in T. L. Payne and H. Saarenmaa, Integrated control of scolytid bark beetles. Virginia Polytechnic and State University, Blacksburg, Virginia. 355 p.
- Langstrom, B. E., and C. Hellqvist. 1988b. Scots pine resistance against Tomicus piniperda as related to tree vitality and attack density . International Congress of Entomology, Proceedings 18:413.
- Langström, B., and C. Hellqvist. 1990. Spatial distribution of crown damage and growth losses caused by recurrent attacks of pine shoot beetles in pine stands surrounding a pulp mill in southern Sweden . Journal of Applied Entomology 110:261-269.
- Langström, B., and C. Hellqvist. 1991. Shoot damage and growth losses following three years of Tomicus attacks in Scots pine stands close to a timber storage site . Silva Fennica 25:133-145.
- Langström, B., and C. Hellqvist. 1992. Height growth recovery and crown development in top-damaged Pinus sylvestris trees . Scandinavian Journal of Forest Research 7:237-247.
- Langström, B., and C. Hellqvist. 1993a. Induced and spontaneous attacks by pine shoot beetles on young Scots pine trees: tree mortality and beetle performance . Journal of Applied Entomology 115:25-36.
- Langström, B., and C. Hellqvist. 1993b. Scots pine susceptibility to attack by Tomicus piniperda L. as related to pruning date and attack density. Annales des Sciences Forestières 50:101-117.
- Langström, B., O. Tenow, A. Ericsson, C. Hellqvist, and S. Larsson. 1990. Effects on shoot pruning on stem growth, needle biomass, and dynamics of carbohydrates and nitrogen in Scots pine as related to season and tree age . Canadian Journal of Forest Research 20:514-523.
- Langström, B., C. Hellqvist, A. Ericsson, and R. Gref. 1992. Induced defence reaction in Scots pine following stem attacks by Tomicus piniperda . Ecography 15:318-327.
- Langström, B., H. Solheim, C. Hellqvist, and R. Gref. 1993. Effects of pruning young Scots pines on host vigour and susceptibility to Leptographium wingfieldi and Ophiostoma minus, two blue-stain fungi associated with Tomicus piniperda . European Journal of Forest Pathology 23:400-415.
- Solheim, H., B. Langstrom, and C. Hellqvist. 1993. Pathogenicity of the blue-stain fungi Leptographium wingfieldii and Ophisotoma minus to Scots pine: Effect of tree pruning and inoculum density . Canadian Journal of Forest Research 23:1438-1443.
- Ehnström, B., B. Langström, and C. Hellqvist. 1995. Insects in burned forests — Forest protection and faunal conservation (preliminary results). Entomologica Fennica 6:109—117.
- Hellqvist, M. 1999. Urban and rural environments from Iron Age to medieval times in northern Europe. Evidence from insect remains from South-Eastern Sweden and Novgorod, Russia. Acta Universitatias Upsaliensis. Uppsala.
- Hellqvist, M., and G. Lemdahl. 1996. Insect assemblages and local environment in the Mediaeval Town of Uppsala, Sweden . Journal of Archaeological Science 23:873-881.
- Långström, B., C. Hellqvist, and B. Ehnstrom. 1999. Susceptibility of fire-damaged Scots pine (Pinus sylvestris L.) trees to attack by Tomicus piniperda L. Pages 299-311 In Physiology and genetics of tree-phytophage interactions: International Symposium. Proceedings of International Symposium on Physiology and Genetics of Tree-Phytophage Interactions, Gulan, France, August 31 -September 4, 1997. Colloques de l'INRA 90.
- Långström, B., F. Lieutier, C. Hellqvist, and G. Vouland. 1995. North American pines as hosts for Tomicus piniperda (L.) (Col., Scolytidae) in France and Sweden. Pages 547-557 In F.P. Hain, S.M. Salem, W.F. Ravlin, T.L. Payne, and K.F. Raffa (eds.), Behavior, population dynamics, and control of forest insects. Proceedings of the Joint IUFRO Conference for Working Parties S2.07-05 and S2.07-06, Maui, Hawaii, 6-11 February 1994. Ohio State University Press, Columbus.