- Schulz. 1873. Der Nonnen- und Kaferfrass in Ostpreussen und Russland von 1845 bis 1867-1868 . Zeitschrift fur Forst- und Jagdwesen 5:170-190.
- Vogler, D., and D. Schulz. 1985. A biological evaluation of pest conditions at Sierra Summit Ski area, Pineridge Ranger District, Sierra National Forest. United States Department of Agriculture, Forest Service, Pacific Southwest Region, San Francisco, California, Forest Pest Management Report 85-21.
- Okello, S., C. Reichmuth, and F. Schulz. 1996a. Observations on the biology and host specificity of Pagiocerus frontalis (Fabricius) (Coleoptera: Scolytidae) at 20 degrees C and 25 degrees C and 75 percent rh (In German, with English summary) . Zeitschrift für Pflan- zenkrankheiten und Pflanzenschutz 103:377-382.
- Okello, S., C. Reichmuth, and F. Schulz. 1996b. Laboratory investigations on the developmental rate at low relative humidity and the developmental temperature limit of Pagiocerus frontalis (Fab) (Col, Scolytidae) at high and low temperatures (In German, with English summary). Anzeiger für Schädlingskunde, Pflanzen- und Umweltschutz 69:180-182.