- Birgersson, G., F. Schlyter, J. Lofqvist, and G. Bergstrom. 1984. Quantitative variation of pheromone components in the spruce bark beetle Ips typographus from different attack phases. Journal of Chemical Ecology 10:1029-1055.
- Birgersson, G., F. Schlyter, G. Bergstrom, and J. Lofqvist. 1984. Pheromone components in the bark beetle Ips typographus reflecting amounts and chirality of host compounds. Abstract. International Congress of Entomology, Proceedings, Hamburg 1984, 17:590.
- Lanne, B. S., F. Schlyter, J. Lofqvist, A. Leufven, G. Bergstrom, and J. A. Byers. 1984. Similarities in odor composition of Tomicus piniperda and T. minor and differences in their behavioral response to these odors. Abstract. International Congress of Entomology, Proceedings, Hamburg 1984, 17:593.
- Anderbrant, O., and J. Lofqvist. 1988. Relation between first and second brood production in the bark beetle Ips typographus . Oikos 53:357-365.
- Anderbrant, O., F. Schlyter, and J. Lofqvist. 1988a. Dynamics of tree attack in the bark beetle Ips typographus under semi-epidemic conditions . International Congress of Entomology, Proceedings 18:412.
- Anderbrant, O., F. Schlyter, and J. Lofqvist. 1988b. Dynamics of tree attack in the bark beetle Ips typographus under semi-epidemic conditions. Pages 35-51 in T L. Payne and H. Saarenmaa, Integrated control of scolytid bark beetles. Virginia Polytechnic and State University, Blacksburg, Virginia. 355 p.
- Birgersson, G., F. Schlyter, G. Bergstro, and J. Lofqvist. 1988. Individual variation in aggregation pheromone content of the bark beetle, Ips typographus . Journal of Chemical Ecology 14:1737-1760.
- Byers, J. A., O. Anderbrant, and J. Lofqvist. 1989. Effective attraction radius: a method for comparing species attractants and determining densities of flying insects . Journal of Chemical Ecology 15:749-766.
- Byers, J. A., G. Birgersson, J. Lofqvist, and G. Bergstrom. 1988. Synergistic pheromones and monoterpenes enable aggregation and host recognition by a bark beetle . Naturwissenschaften 75:153-155.
- Byers, J. A., H. E. Hogberg, C. R. Unelius, G. Birgersson, and J. Lofqvist. 1989. Structure-activity studies on aggregation pheromone components of Pityogenes chalcographus (Coleoptera: Scolytidae): all stereoisomers of chalcogran and methyl-2 4-decadienoate . Journal of Chemical Ecology 15:685-696.
- Byers, J. A., B. S. Lanne, and J. Lofqvist. 1989. Host tree unsuitability recognized by pine shoot beetles in flight . Experimentia (Basel) 45:489-492.
- Byers, J. A., B. S. Lanne, J. Lofqvist, F. Schlyter, and G. Bergstrom. 1985. Olfactory recognition of host-tree susceptibility by pine shoot beetles . Naturwissenschaften 72:32-326.
- Byers, J. A., and J. Lofqvist. 1989. Flight initiation and survival in the bark beetle Ips typographus (Coleoptera: Scolytidae) during the spring dispersal . Holarctic Ecology 12:432-440.
- Lanne, B. S., F. Schlyter, J. A. Byers, J. Lofqvist, A. Leufven, G. Bergstrom, J. N. C. V. d. Pers, R. Unelius, P. Baeckstrom, and T. 1987. Differences in attraction to semiochemicals present in sympatric pine shoot beetles, Tomicus minor and T piniperda . Journal of Chemical Ecology 13:1045-1067.
- Schlyter, F., G. Birgersson, J. A. Byers, J. Lofqvist, and G. Bergstrom. 1987. Field response of spruce bark beetle, Ips typographus, to aggregation pheromone candidates . Journal of Chemical Ecology 13:701-716.
- Schlyter, F., J. A. Byers, and J. Lofqvist. 1987. Attraction to pheromone sources of different quantity, quality, and spacing: density-regulation mechanisms in bark beetle Ips typographus . Journal of Chemical Ecology 13:1503-1523.
- Schlyter, F., J. A. Byers, J. Lofqvist, A. Leufven, and G. Birgersson. 1988. Reduction of attack density of the bark beetles Ips typographus and Tomicus piniperda on host bark by verbenone inhibition of attraction to pheromone and host kairomone. Pages 53-68 in T. L. Payne and H. Saarenmaa, Integraged control of scolytid bark beetles. Virginia Polytechnic and State University, Blacksburg, Virginia. 355 p.
- Schlyter, F., and J. Lofqvist. 1986. Response of walking spruce bark beetles Ips typographus to pheromone produced in different attack phases . Entomologia Experimentalis et Applicata 41:219-230.
- Schlyter, F., J. Lofqvist, and J. A. Byers. 1987. Behavioural sequence in the attraction of the bark beetle Ips typographus to pheromone sources . Physiological Entomology 12:185-196.
- Birgersson, G., J. Byers, G. Bergstrom, and J. Lofqvist. 1990. Production of pheromone components, chalcogran and methyl(e,z)-2,4-decadiendate, in the spruce engraver Pityoenes chalcographus . Journal of Insect Physiology 36:391-395.
- Byers, J., G. Birgersson, J. Lofqvist, M. Appelgren, and G. Bergstrom. 1990a. Isolation of pheromone synergists of bark beetles, Pityogenes chalcographus, from complex insect-plant odors by fractionation and subtractive-combination bioassay . Journal of Chemical Ecology 16:861-876.
- Schlyter, F., and J. Lofqvist. 1990. Colonization pattern in the pine shoot beetle, Tomicus piniperda: effects of host declination, structure and presence of conspecifics . Entomología Experimentalis et Applicata 54:163-172.
- Zhang Qing-He, G. B., J. Zhu, C. Lofstedt, J. Lofqvist, and F. Schlyter. 1999. Leaf volatiles from nonhost deciduous trees: Variation by tree species, season and temperature, and electrophysiological activity in Ips typographus . Journal of Chemical Ecology 25:1923-1943.