@inbook {2072, title = {Origins of polyploids}, booktitle = {Polyploidy, Biological Relevance}, year = {Submitted}, pages = {3-15}, publisher = {Plenum Press}, organization = {Plenum Press}, address = {New York and London}, keywords = {INCOMPLETE, ORIGINS, POLYPLOIDY}, author = {de Wet, J. M. J.}, editor = {Lewis, Walter H.} }