Emsian
- Atika HILALI, Hassan LACHKHEM & Frédéric BOULVAIN
- Comparaison des Kess-Kess de Hmar Lakhdad (Emsien, Maroc) et des monticules micritiques de l'anticlinorium de Philippeville (Frasnien, Belgique)
- volume 1 (1998)
- Pierre BULTYNCK & Léon DEJONGHE
- Devonian lithostratigraphic units (Belgium)
- volume 4 (2001)number 1-2 - Guide to a revised lithostratigraphic scale of Belgium
- Léon DEJONGHE, Robert COLBACH & Eric GOEMAERE
- The lithostratigraphy of the lower Devonian formations of the Eisleck region (northern Luxembourg). Comparison with their Belgian lateral equivalents
- Volume 20 (2017)number 1-2
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