Author:

Petrunova-Olova,L.

Year:

1990

Title:

Middle and Upper Triassic palynology zones from Northwest Bulgaria (Preliminary results)

Foreign title:

Sredne-Verkhetrivasovye palinologicheskie Zony Severo-Zapadnoi Bolgarii (Predvaritel'Nye Rezultaty)

Reference:

Petrunova-Olova,L. (1990) Middle and Upper Triassic palynology zones from Northwest Bulgaria (Preliminary results) [ Sredne-Verkhetrivasovye palinologicheskie Zony Severo-Zapadnoi Bolgarii (Predvaritel'Nye Rezultaty) ] Bulgarian Geological Society,Mikrofossilii v Bolgarskoi Stratigrafii Bolgarskoe Geologicheskoe Obshchestvo (Microfossils in Bulgarian Stratigraphy,T.G.Nikolov-Ed) P. 35- 38

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