Kalandra, A., & Pfeffer, A. 1940 [Important and noteworthy pests and diseases harmful to forests of Protektorate, Bohemia and Moravia].. Ochrona Roslin 16: 40-45.

Notes: Summary in German; species mentioned include Diaspis visci, Kermes quercus, Lecanium coryli and Gossyparia ulmi.