@article {263,
	title = {Two New Combinations in Stuckenia, the Correct Name for Coleogeton (Potamogetonaceae)},
	journal = {Novon},
	volume = {8},
	year = {1998},
	pages = {241},
	author = {Haynes, R.R. and Les, D.H. and Kr{\'a}l, M.}
}
@article {262,
	title = {Euploid and aneuploid evolution in Potamogeton (Potamogetonaceae): a factual basis for interpretation},
	journal = {Aquatic Botany},
	volume = {60},
	year = {1998},
	pages = {337{\textendash}358},
	doi = {10.1016/S0304-3770(97)00101-0},
	author = {Hollingsworth, P.M. and Preston, C.D. and Gornall, R.J.}
}
