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| Author | : | Pamouktchiev, A. |
| Year of publication | : | 1975 |
| Reference letter | : | a |
| Title | : | Espèces nouvelles de Pironaea (Hippuritidae). |
| Journal | : | Palaeontology, Stratigraphy and Lithology |
| Vol/No/Pages/Plates | : | 3: 19-25, 5 pls. |
| Published in | : | Sofija |