@article {138,
	title = {Distribution and systematics of Batrachospermum (Batrachospermales, Rhodophyta) in North America. 3. Section Setacea},
	journal = {Journal of Phycology},
	volume = {29},
	year = {1993},
	chapter = {720-726},
	author = {Sheath, R.G. and Vis, M. L. and Cole, K.M.}
}
@article {140,
	title = {Distribution and systematics of Chroodactylon and Kylinella (Porphyridiales, Rhodophyta) from North American streams},
	journal = {Japanese Journal of Phycology},
	volume = {41},
	year = {1993},
	chapter = {231-235},
	author = {Vis, M. L. and Sheath, R.G.}
}
@article {137,
	title = {Distribution and systematics of freshwater Ceramiales (Rhodophyta) in North America},
	journal = {Journal of Phycology},
	volume = {29},
	year = {1993},
	chapter = {108-117},
	author = {Sheath, R.G. and Vis, M. L. and Cole, K.M.}
}
@article {139,
	title = {Distribution and systematics of the freshwater red algal family Thoreaceae in North America},
	journal = {European Journal of Phycology},
	volume = {28},
	year = {1993},
	chapter = {231-241},
	author = {Sheath, R.G. and Vis, M. L. and Cole, K.M.}
}
