@article {6238,
	title = {Size-Frequency Study of Pinus Palustris Pollen},
	journal = {Ecology},
	volume = {25},
	year = {1944},
	month = {April},
	pages = {229-232},
	keywords = {Fossils, Pines, Pollination},
	author = {Cain, Stanley A and Cain, Louise G}
}
