1. Albrecht, B. (1973) Untersuchungen über Lebensweise und Verbreitung von Melampyrum sylvaticumL. (Scrophulariaceae). Diplomarbeit Mainz. (cited by Hartl 1974).
2. Atsatt, P.R. (1983) Host-parasite interactions in higher plants. Encylopedia Pl.Phys. N.S. 12C: 519 – 535.
3. Atsatt, P. R. and Strong, D. R. (1970) The population biology of annual grassland hemiparasites. I. The host environment. Evolution 24: 278 – 291.
4. Barsukova, AN. and Pyatkovskaya, V.P. (1977) Influence of spruce root system on dynamics of abundance and vitality of some plants of herb undershrub layer in Picetum hylocomiosum. Vestn. Mosk. Univ. XVI Biol. (4): 56–64. (in Russian).
5. Benkov, B. (1978) Chemical control of Melampyrum arvensein winter wheat. Rasteniev dni Nauki 15: 126–131. (in Russian).