Microfossil communities from Middle sarmatian sediments of Belgrade area

Gagić, Nadežda (1994)
(foraminiferi, sarmat, besarabijan, Beograd)

Contribution to the study of the Sarmatian at Ritopek village near Belgrade

Šumar, Meri (1992)
(stratigrafija, sarmat, Ritopek, mekušci, ostrakodi, foraminiferi)