Ecology of Aphidophaga : proceedings of a 2. Symposium [poř.] Entomological Institute of the Czechoslovak Academy of Sciences, Zvíkovské Podhradí, September 2-8, 1984 - Dixon, Anthony F. G.; Hodek, Ivo 1931-; Hodek, Ivo 1931- (Symposia ČSAV, 1986)