1. Akkuzu E, Sariyildiz T, Kucuk M, Duman A (2009) Ips typographus (L.) and Thanasimus formicarius (L.) populations influenced by aspect and slope position in Artvin-Hatila valley national park. Turkey. Afr J Biotechnol 8:877–882
2. Annila E (1969) Influence of temperature upon the development and voltinism of Ips typographus L. (Coleoptera, Scolytidae). Ann Zool Fenn 6:161–208
3. Baier P, Bader R (1997) Monoterpene content and monoterpene emission of Norway spruce bark and their relation to the primary attraction of bark beetles (Coleoptera, Scolytidae). Mitt Dtsch Ges Allg Angew Ent 11:639–643
4. Baier P, Pennerstorfer J, Schopf A (2007) PHENIPS—a comprehensive phenology model of Ips typographus (L.) (Col., Scolytinae) as a tool for hazard rating of bark beetle infestation. Forest Ecol Manag 249:171–186. doi: 10.1016/j.foreco.2007.05.020
5. Bolstad PV, Bentz BJ, Logan JA (1997) Modelling micro-habitat temperature for Dendroctonus ponderosae (coleopteran: scolytidae). Ecol Model 94:287–297. doi: 10.1016/S0304-3800(96)00021-x