Strøm, J. S. & Amsen, M. G. (1989). Energy Signature for a Greenhouse Nursery District. In Bailey, B.J.: Engineering and Economic Aspects of Energy Saving in Protected Cultivation. The AFRC Institute of Engineering Research, UK. Acta Hortic (pp. 245-245)
Kadar, F. & Lövei, G. (1989). Ground beetles Carabidae. In K. Balazs & Z. Meszaros (Eds.), Biological control by natural enemies (pp. 117-125). Mezogazdasagi Publ.