HOFFKNECHT, A. - Mikropetrographische, organisch-geochemische, mikrothermometrische und mineralogische Untersuchungen zur Bestimmung der organischen Reife von Graptolithen-Periderm.

1991. Göttinger Arb. Geol. Paläont. 48; 98 pp. 48 fig. 5 plts. h.t. Orig. wrps. libr. stamp on front cover, 4to.

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