@book {20191,
	title = {Chinese ecomomic trees},
	year = {1921},
	publisher = {The Commercial Press, Ltd.},
	organization = {The Commercial Press, Ltd.},
	address = {Shanghai},
	url = {http://www.biodiversitylibrary.org/item/115117$\#$page/7/mode/1up},
	author = {Woon-Young Chun}
}
@article {19917,
	title = {Plantae novae Sinenses (10. Fortsetzung).},
	journal = {Anzeiger der Akademie der Wissenschaften in Wien, Mathematisch-naturwissenschaftliche Klasse},
	volume = {58},
	year = {1921},
	pages = {63-66},
	chapter = {63},
	url = {http://www.biodiversitylibrary.org/item/88590$\#$page/91/mode/1up},
	author = {Handel-Mazzetti, Heinrich R.E.}
}
@article {19917,
	title = {Plantae novae Sinenses (12. Fortsetzung).},
	journal = {Anzeiger der Akademie der Wissenschaften in Wien, Mathematisch-naturwissenschaftliche Klasse},
	volume = {58},
	year = {1921},
	pages = {145-154},
	chapter = {145},
	url = {http://www.biodiversitylibrary.org/item/88590$\#$page/173/mode/1up},
	author = {Handel-Mazzetti, Heinrich R.E.}
}
@article {19841,
	title = {Diagnoses specierum novarum in herbario horti regii botanici Edinburgensis cognitarum. DI-DL.},
	journal = {Notes from the Royal Botanic Garden, Edinburgh},
	volume = {13},
	year = {1921},
	pages = {149-187},
	chapter = {149},
	url = {http://www.biodiversitylibrary.org/item/99837$\#$page/199/mode/1up},
	author = {Smith, William W. and Evans, William E. and Forrest, George and Balfour, Isaac B.}
}
