@article {15970,
	title = {Diagnoses of Hainan Plants,II},
	journal = {The Philippine Journal of Science},
	volume = {23},
	year = {1923},
	author = {E.D.Merrill}
}
@book {14362,
	title = {Botanicheskie Materialy Gerbarija Glavnogo Botaniceskogo Sasa RSFSR},
	volume = {4},
	year = {1923},
	author = {N.V.Schipczinski}
}
@article {4522,
	title = {De Gymnospermis nonnullis Asiaticis.},
	journal = {Botanicheskie Materialy Gerbariya Glavnogo Botanicheskogo Sada RSFSR},
	volume = {4},
	year = {1923},
	author = {V.L.Komarov}
}
@article {4374,
	title = {Pteridaceae},
	journal = {Akad. Anz. Akad. Wien. },
	volume = {9},
	year = {1923},
	author = {Hand.-Mazz}
}
