Spores and pollen of the red-colored coal-bearing Permian and Triassic sediments of the northeastern part of European SSSR.
Foreign title:
Spory i pyltsa Krasnotsvetnykh i uglenosnykh otlozheniy Permi i Triassa Severo-Vostoka Evropeyskoy Chasti SSR.
Reference:
Varyukhina,L.M. (1971)
Spores and pollen of the red-colored coal-bearing Permian and Triassic sediments of the northeastern part of European SSSR. [ Spory i pyltsa Krasnotsvetnykh i uglenosnykh otlozheniy Permi i Triassa Severo-Vostoka Evropeyskoy Chasti SSR. ] Trudy Institut Geologii,Komi Nauchnogo Tsentralnykh,Uralskoi Otdelenie,Akademiya Nauk SSR,(Leningrad)
P. 3- 158