@article {1534,
	title = {Rhodopsin-like proteins in planarian eye and auricle: Detection and functional analysis},
	volume = {201},
	year = {1998},
	month = {1998//},
	author = {Asano, Y. and Nakamura, S. and Ishida, S. and Azuma, K. and Shinozawa, T.}
}
@article {1518,
	title = {Absorption spectra of planarian visual pigments and two states of the metarhodopsin intermediates},
	volume = {69},
	year = {1999},
	month = {1999//},
	url = {http://dx.doi.org/10.1111/j.1751-1097.1999.tb05312.x},
	author = {Azuma, K. and Iwasaki, N. and Ohtsu, K.}
}
