1. Act on forests, 1993. Official Gazette RS, No. 30/1993, 13/1998, 67/2002, 110/2002.
2. Annual Reports-Slovenian Forest Service, 1995–2002 (in Slovenian).
3. Pheromones and traps as part of an integrated control of the spruce bark beetle Ips typograhpus, some results from a control program in Norway in 1979 and 1980;Bakke;Nisk. Nor. Inst. Skogforsk. Rapp.,1981
4. Population fluctuation in Ips typographus during a 12 years period. Effects of temperature and control measures;Bakke,1995
5. Dispersal and flight behavior of the spruce bark beetle Ips typographus in relation to sex size and fat content;Botterweg;Z. Angew. Entomol.,1982