@inbook {Stothard2002_491,
	title = {Evolution of the PP2C family in Caenorhabditis: Rapid divergence of the sex-determining protein FEM-2},
	booktitle = {Journal of Molecular Evolution},
	volume = {54},
	year = {2002},
	pages = {267{\textendash}282},
	author = {Stothard, P. and Hansen, D. and Pilgrim, D.}
}
