by Kostova, I.N., Nikolov, N.M., Chipilska, L.N.
Published in Journal of ethnopharmacology (01.08.1993)

by Uzunova, S V, Chipilska, L N, Stoianova, Ts B, Iordanova, I E, Kurdova, R I
Published in Gigiena i sanitarija (01.05.1993)

by Ikonomova, Z L, Chipilska, L N, Kruleva, P I, Anastasova, A P
Published in Gigiena truda i professional'nye zabolevaniia (1989)