@article {2483,
	title = {Filices Michelianae},
	journal = {Bulletin de L Academie internationale de Geographi},
	volume = {20},
	year = {1910},
	author = {Christ}
}
@article {2271,
	title = {Filices Cavalerianae II},
	journal = {Bulletin de L Academie Internationale de Geographi},
	volume = {15},
	year = {1906},
	author = {H.Christ}
}
@article {2269,
	title = {Filices Chinae Occidentalis},
	journal = {Bulletin de L Academie Internationale de Geographi},
	volume = {15},
	year = {1906},
	author = {H.Christ}
}
@article {2221,
	title = {Filices Yunnnanenses},
	journal = {Bulletin de L Academie Internationale de Geographi},
	volume = {16},
	year = {1907},
	author = {H.Christ}
}
@article {2173,
	title = {Filices Novae Cavalerianae IV},
	journal = {Bulletin de L Academie Internationale de Geographi},
	volume = {19-20},
	year = {1910},
	author = {H.Christ}
}
