by Toncheva, E, Shindarska, Z, Stanchev, Kh. (Institut po Zhivotnov"dstvo, Kostinbrod (Bulgaria))
Published in Zhivotnovŭdni nauki (1997)

by Gudev, D, Aleksandrov, S, Ralcheva, S, Aleksandrov, A, Stanchev, Kh. (Institut po Zhivotnov"dstvo, Kostinbrod (Bulgaria)), Bonovska, M
Published in Zhivotnovŭdni nauki (1998)

by Petkova, M, Stanchev, Kh. (Institut po Zhivotnov"dstvo, Kostinbrod (Bulgaria))
Published in Zhivotnovŭdni nauki (1994)

by Stanchev, Kh. (Institut po Zhivotnov"dstvo, Kostinbrod (Bulgaria))
Published in Ptitsev"dstvo (Bulgaria) (2000)

by Stanchev, Kh. (Institut po Zhivotnov"dstvo, Kostinbrod (Bulgaria))
Published in Zhivotnovŭdni nauki (1987)

by Cheshmedzhiev, B, Mircheva, D, Dzharova, M, Stanchev, Kh. (Institut po Zhivotnov"dstvo, Kostinbrod (Bulgaria))
Published in Zhivotnovŭdni nauki (1981)

by Dimitrov, D. (Institut za Povishavane Kvalifikatsiyata na Kadri, Sofia (Bulgaria)), Stanchev, Kh. (Institut po Zhivotnov"dstvo, Kostinbrod (Bulgaria)), Ilcheva, I. (Institut po Z"rneni Khrani i Furazhna promishlenost, Kostinbrod (Bulgaria))
Published in Rastenievd́ni nauki (1990)

by Stanchev, Kh. (Institut po Zhivotnov"dstvo, Kostinbrod (Bulgaria)), Venkov, T. (Tsentralen Veterinarnomeditsinski Institut, Sofia (Bulgaria)), Georgieva, J. (Vissh Lesotekhnicheski Institut, Sofia (Bulgaria))
Published in Veterinarnomeditsinski Nauki (Bulgaria) (1979)