Bhandari, R. S., Swati Pande, Joshi, M. C., Zaidi, S. M. H., Rawat, J. M. S., Vinod Kumar, (2006). Indian Forester 132(8), 1041-1046. Indian Forester, Dehra Dun, India. English language
Bhandari, R. S., Joshi, M. C., Zaidi, S. M. H., Rawat, J. M. S., (2003). Indian Forester 129(3), 401-406. Indian Forester, Dehra Dun, India. English language
Lill, J. T., Marquis, R. J., Ricklefs, R. E., (2002). Nature (London) 417(6885), 170-173. Nature Publishing Group, London, UK. English language
Kegley, S., Sturdevant, N., Stein, J., Willhite, B., Flanagan, P., Weatherby, J., Marsden, M., (2001). Forest Health Protection Report - Northern Region, USDA Forest Service(No.01-6), 13 pp. Northern Region, USDA Forest Service, Missoula, USA. English language
Seifert, M., Wermelinger, B., Schneider, D., (2000). Journal of Applied Entomology 124(7/8), 269-278. Blackwell Wissenschafts-Verlag GmbH, Berlin, Germany. English language
Bąk, J., (1999). Sylwan 143(6), 83-89. Polish language
Kelbel, P., (1998). Lesnictví - Forestry 44(9), 406-410. Czech language
Skrzypczyńska, M., Kozioł, M., Kosibowicz, M., (1998). Sylwan 142(9), 33-41. Polish language
Eliason, E. A., McCullough, D. G., (1997). Journal of Economic Entomology 90(6), 1598-1608. English language
Schowalter, T. D., (1994). Journal of Economic Entomology 87(3), 758-765. English language