Stoyanov, N.,
Enchev, V.,
Mateva, V.,
Popova, I.,
Kashchieva, M.,
Aleksiev, B., &
Miteva, M.
(1999).
Copper (II) Compleхes of Spirohydantoines: Syntesis, Quautmu-Chemical and Spectroscopic Study. // <I>Structural<D> Chemistry, 10, 1999, № 5, p. 381-385..