by Moutafchiev, D.A., Sirakov, L.M., Naidu, A.S.
Published in Journal of dairy science (01.09.1991)

by Sirakova, I, Panova, D, Georgiev, P, Sirakov, L M
Published in Pavlovian journal of biological science (01.04.1988)

by Kossekova, Ganka P., Vrabchev, Nikola C., Sirakov, Ljuben M.
Published in Computers in biology and medicine (1989)

by Moutafchiev, D A, Sirakov, L M
Published in Hormone and metabolic research (01.09.1992)

by Mihalev, A, Tzingilev, D, Sirakov, L M
Published in Neoplasma (1976)

by Moutafchiev, D.A, Sirakov, L.M
Published in Biological trace element research (01.12.1992)

by Todorov, V, Ivanova, T, Tzingilev, D, Sirakov, L M
Published in Neoplasma (1976)

by Sirakova, I A, Sirakov, L M, Sachs, G, Luketic, G C
Published in Biochemical pharmacology (01.08.1971)

by MOUTAFCHIEV, D. A, SIRAKOV, L. M, OVCHAROFF, V. A
Published in Journal of inorganic biochemistry (01.12.1990)

by Shisheva, A C, Ivanova, T, Sirakov, L M
Published in Acta physiologica et pharmacologica Bulgarica (1984)

by Sirakova, I A, Babushkina, N, Jakimov, J, Sirakov, L M
Published in Acta physiologica et pharmacologica Bulgarica (1984)

by Moutafchiev, D A, Sirakov, L M
Published in Zeitschrift fur medizinische Laboratoriumsdiagnostik (1981)

by Maneva, Ana I., Taleva, Borislava M., Manev, Vladi V., Sirakov, Ljuben M.
Published in International journal of biochemistry (01.12.1993)

by Sirakova, J, Nikolov, N, Sirakov, L M, Murat, J
Published in Zeitschrift fur medizinische Laboratoriumsdiagnostik (1979)

by Moutafchiev, D A, Sirakov, L M
Published in Biological trace element research (01.07.1998)

by Sirakov, Ljuben M., Ditzov, Stefan P.
Published in Clinica chimica acta (30.04.1973)

by Apostolova, Julia S., Apostolov, Georgi, Sirakov, Ljuben M.
Published in Biochimica et biophysica acta (23.04.1976)

by Mitev, Vanio I., Sirakov, Ljuben M.
Published in International journal of biochemistry (1989)

by Sirakov, L M, Schulga, A V
Published in Life sciences. Part 2. Biochemistry, general & molecular biology (08.12.1971)

by Sirakov, L M, Kochakian, C D
Published in Biochimica et biophysica acta (16.12.1969)