by Kosturski, N, Jovcheva, S
Published in Rasteniev"dni Nauki (Bulgaria) (1975)

by Stoyanova, J, Ivanov, P
Published in Rasteniev"dni Nauki (Bulgaria) (1975)

by Petkov, P
Published in Rasteniev''dni Nauki (Bulgaria) (1975)

by Vranski, V, Petrova, R, Redenkov, S
Published in Rasteniev''dni Nauki (Bulgaria) (1975)

by Khristov, G
Published in Rasteniev"dni Nauki (Bulgaria) (1975)

by Markov, M, Kajtazova, P, Stefanov, J
Published in Rasteniev"dni Nauki (Bulgaria) (1975)

by Stajkov, G, Krachanova, B
Published in Rasteniev''dni Nauki (Bulgaria) (1975)

by Spirova, M
Published in Rasteniev"dni Nauki (Bulgaria) (1975)

by Velkov, V, Stoyanova, J
Published in Rasteniev"dni Nauki (Bulgaria) (1975)

by Totev, V, Stoyanova, J, Petrov, D
Published in Rasteniev"dni Nauki (Bulgaria) (1975)

by Dimchovski, P, Katsarov, A
Published in Rasteniev''dni Nauki (Bulgaria) (1975)

by Chak''rov, R
Published in Rasteniev''dni Nauki (Bulgaria) (1975)

by Stoyanov, D
Published in Rasteniev"dni Nauki (Bulgaria) (1975)

by Kalajdzhieva, S
Published in Rasteniev"dni Nauki (Bulgaria) (1975)

by Delibaltov, J, Delchev, L, Georeva, M
Published in Rasteniev''dni Nauki (Bulgaria) (1975)

by Tsalov, J
Published in Rasteniev"dni Nauki (Bulgaria) (1975)

by Stajkov, G, Krachanova, B
Published in Rasteniev"dni Nauki (Bulgaria) (1975)

by G''l''bov, S. (Opitna Stantsiya po Semeproizvodstvo-s. Resen, Velikot''rnovsko (Bulgaria)), Peeva, R. (Kompleksna Opitna Stantsiya-K''rdzhali (Bulgaria))
Published in Rasteniev''dni Nauki (Bulgaria) (1974)

by Stoyanov, D. (Institut za Zashchita na Rasteniyata, Kostinbrod (Bulgaria))
Published in Rasteniev"dni Nauki (Bulgaria)l (1979)