1. Correlation of the Pliocene and Lower Pleistocene deposits in the Dacic and Euxinic Basins;Alexeeva,1983
2. Limnocardiides quaternaires de la zone de courbure des Carpathes Orientales (Roumanie);Andreescu,1969
3. Middle-Upper Neogene and Early Quaternary chronostratigraphy from the Dacian Basin and correlations with the neighbouring areas;Andreescu,1981
4. Biocronologia şi cronostratigrafia Pliocenului superior şi Pleistocenuui inferior din Bazinul Dacic;Andreescu;Analele Universitǎţii Bucureşti, Geologie,1982