@article{b467fb9fe5134fd6b00a2b4c80ab6aed,
title = "The ultrastructure and botanical affinity of end-Permian spore tetrads.",
keywords = "Life sciences, Biologie/Milieukunde (BIOL), Other biological specialities",
author = "C.V. Looy and M.E. Collinson and \{van Konijnenburg-van Cittert\}, J.H.A. and H. Visscher and A.P.R. Brain",
year = "2005",
language = "Undefined/Unknown",
volume = "166",
pages = "875--887",
journal = "International Journal of Plant Sciences",
issn = "1058-5893",
publisher = "University of Chicago Press",
number = "5",
}