@book {539,
	title = {Botany For Degree Students Pteridophyta (Vascular Cryptograms)  },
	year = {2006},
	author = {Vashishta, P and Sinha, A and Kumar, A}
}
@article {217,
	title = {Antibacterial activity of Christella dentata frosk.  Study in different seasons},
	journal = {Journal of Chemical and Pharmaceutical Research},
	volume = {3},
	year = {2011},
	pages = {153-158},
	chapter = {153},
	author = {Kumar, A and Kaushik, P}
}
