APA

Changov L. S., Vasileva-Lukanova B. K., Agapova N. N., Tsenkova M. M., Mondeshka D. M. & Ivanova Z. T. (19910204). [A simple method of synthesis of S-sulfoxides of penicillanic acid and 6-alpha-bromo[chloro]-penicillanic acids]. : Antibiotiki i khimioterapiia = Antibiotics and chemoterapy [sic].

Chicago

Changov L S, Vasileva-Lukanova B K, Agapova N N, Tsenkova M M, Mondeshka D M and Ivanova Z T. 19910204. [A simple method of synthesis of S-sulfoxides of penicillanic acid and 6-alpha-bromo[chloro]-penicillanic acids]. : Antibiotiki i khimioterapiia = Antibiotics and chemoterapy [sic].

Harvard

Changov L. S., Vasileva-Lukanova B. K., Agapova N. N., Tsenkova M. M., Mondeshka D. M. and Ivanova Z. T. (19910204). [A simple method of synthesis of S-sulfoxides of penicillanic acid and 6-alpha-bromo[chloro]-penicillanic acids]. : Antibiotiki i khimioterapiia = Antibiotics and chemoterapy [sic].

MLA

Changov L S, Vasileva-Lukanova B K, Agapova N N, Tsenkova M M, Mondeshka D M and Ivanova Z T. [A simple method of synthesis of S-sulfoxides of penicillanic acid and 6-alpha-bromo[chloro]-penicillanic acids]. : Antibiotiki i khimioterapiia = Antibiotics and chemoterapy [sic]. 19910204.