| Title | Flora Fossilis Helvetiae...Zurich |
| Abbreviation | Fl. Foss. Helvet. |
| Authors | O. Heer |
| Publication Dates | Fasc. 1, 1876; fasc. 2, 1876, fasc. 3, 1877; fasc. 4, 1877 |
| TL2 | 2.553 |
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