@article {649,
	title = {Lichens Collected on the Arctic Excursion of the 9th International Botanical Congress (Montreal) in 1959},
	journal = {The Bryologist},
	volume = {95},
	number = {4},
	year = {1992},
	pages = {392-405},
	chapter = {392},
	url = {http://www.jstor.org/stable/3243563},
	author = {Thomson, John W. and William A. Weber}
}
@article {650,
	title = {Lichens of Attu Island, Alaska},
	journal = {The Bryologist},
	volume = {94},
	number = {4},
	year = {1991},
	pages = {421-426},
	chapter = {421},
	url = {http://www.jstor.org/stable/pdfplus/3243837.pdf},
	author = {Talbot, Stephen S. and Sandra Looman Talbot and Thomson, John W.}
}
@article {648,
	title = {Lichens Collected on an Alaska Highway Expedition in Alaska and Canada},
	journal = {The Bryologist},
	volume = {97},
	number = {2},
	year = {1994},
	pages = {138-157},
	chapter = {138},
	url = {http://www.jstor.org/stable/pdfplus/3243751.pdf},
	author = {Thomson, John W. and Ahti, T}
}
