@article {1356,
	title = {Die Koniferen des Oberkarbons und des Unteren Perms. F{\"u}nftes Heft},
	journal = {Palaeontographica Abtheilung B},
	volume = {85},
	year = {1940},
	pages = {243-363 + pls. CLI-CLXVI + Tafelerklarungen p. 55-62},
	chapter = {243},
	author = {Florin, Rudolf}
}
@article {1052,
	title = {On Walkomia n. gen., a genus of Upper Palaeozoic conifers from Gondwanaland},
	journal = {Kungl. Svenska  Vetenskapsakademiens Handlingar. Tredje Serien},
	volume = {18},
	year = {1940},
	pages = {3-23, pls 1-4},
	chapter = {3},
	author = {Florin, Rudolf}
}
