Bibliographic Detail
Valeva, M.T. & Temniskova-Topalova, D.N., 1993
Reference:
Valeva, M.T. & Temniskova-Topalova, D.N. (1993). Diatom analysis of the Neogene sediments from the Karlovo coal basin. I. Fitologija. Bulgarska Akademiiana Naukite (Bulgarian Academy of Sciences) 46: 67-82,4 pl.