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| Author | : | Milovanovic, B. |
| Year of publication | : | 1936 |
| Reference letter | : | a |
| Title | : | Yvania maestrichtiensis n. sp. et son importance pour la question de la formation brusque des formes nouvelles. |
| Journal | : | Geoloski Anali balkanskoga Poluostrva |
| Vol/No/Pages/Plates | : | 13: 28-54, 3 figs., 1 pl. |
| Published in | : | Beograd |