@article {1530,
	title = {Planaria: Memory Transfer through Cannibalism Reexamined},
	volume = {146},
	year = {1964},
	month = {1964//},
	url = {http://dx.doi.org/10.1126/science.146.3641.274},
	author = {Hartry, A. L. and Keith-Lee, P. and Morton, W. D.}
}
@article {1517,
	title = {Observations on the fine structure of photoreceptor cells in the planarian Dugesia tigrina},
	volume = {10},
	year = {1964},
	month = {1964//},
	url = {http://dx.doi.org/10.1016/S0022-5320(64)80013-7},
	author = {MacRae, E. K.}
}
@article {385,
	title = {A new freshwater planarian, Dugesia japonica, commonly but erroneously known as Dugesia gonocephala (Duges)},
	journal = {Annotationes zoologicae Japonenses},
	volume = {37},
	number = {3},
	year = {1964},
	pages = {185-194},
	publisher = {The Zoological Society of Japan},
	author = {Ichikawa, A. and Masaharu Kawakatsu}
}
