Playford, G. (1963). Lower Carboniferous microfloras of Spitsbergen. Part two. Palaeontology. 5(4): 619-678.
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Playford, G.
1963
Lower Carboniferous microfloras of Spitsbergen. Part two
Palaeontology
5(4): 619-678
Publication
Part 1 of this paper, along with the abstract for both parts, appeared in 1962, however part 2 was not published until January 1963 according to the journal's website, refer https://www.palass.org/publications/palaeontology-journal/archive/5/4/article_pp619-678. However ING gives the title of the paper only (not the journal reference), along with 1962 as the year.