@article {695,
	title = {A New Record for Ruppia truncatifolia Miki (Potamogetonaceae) with Fruits from Lake Tohfutsu, Hokkaido, Japan},
	journal = {Journal of Japanese Botany},
	volume = {83},
	year = {2008},
	pages = {121-123},
	author = {Yamazaki, M. and Mochida, M. and Kato, Y.}
}
@article {601,
	title = {Comments on the East Asiatic plants (12)},
	journal = {Journal of Japanese botany},
	volume = {58},
	year = {1983},
	pages = {321-330},
	author = {Hara, H.}
}
