by Markov, K I, Lobutova, M S, Ivanov, V P, Staynov, D
Published in Journal of hygiene, epidemiology, microbiology, and immunology (1973)

by Markova, B, Lobutova, M, Ninov, N
Published in Vutreshni bolesti (1985)

by Gruev, I, Lobutova, M, Markova, B, Neshev, Kh, Robeva, R
Published in Vutreshni bolesti (1985)

by Astrug, A, Gavrilov, G, Todorova, L, Lobutova, M, Tsenova, Z
Published in Vutreshni bolesti (1983)

by Markov, K, Kantardjiev, V, Lobutova, M
Published in Comptes rendus de l'Académie Bulgare des sciences : sciences mathématiques et naturelles (01.03.1968)

by Markov, K I, Ivanov, V, Lobutova, M
Published in Narodno zdravlje (01.02.1973)

by Markov, K I, Lobutova, M, Ivanov, I, Ivanov, G
Published in Comptes rendus de l'Académie Bulgare des sciences : sciences mathématiques et naturelles (1968)