@article {596,
	title = {Two unusual features in Thelypteroid ferns and their evolutionary significance},
	journal = {American Fern Journal},
	volume = {67},
	year = {1977},
	month = {1977},
	chapter = {53},
	author = {Loyal, D.S}
}
@article {288,
	title = {The purification and properties of Thiaminase I enzyme from Nardoo},
	year = {1977},
	author = {B V McCleary and B F Chick}
}
