Dragastan, O. (2011). Early Cretaceous Foraminifera, Algal Nodules and Calpionellids from the Lapos Valley, Bicaz Gorges (Eastern Carpathians, Romania). Analele Stiintifice ale Universitatii "Al. I. Cuza" - Seria Geologie. 57(1):91-105.
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Dragastan, O.
2011
Early Cretaceous Foraminifera, Algal Nodules and Calpionellids from the Lapos Valley, Bicaz Gorges (Eastern Carpathians, Romania).
Analele Stiintifice ale Universitatii "Al. I. Cuza" - Seria Geologie