@book {563,
	title = {Zygophyllaceae},
	year = {1931},
	publisher = {2nd edition, vol. 19a, section 2:},
	organization = {2nd edition, vol. 19a, section 2:},
	address = {Leipzig, Engelmann.},
	author = {Engler, A.}
}
@article {546,
	title = {Zygophyllaceae},
	journal = {In: Engler A, Prantl K, eds. Die nat{\"u}rliche PflanzenfamilienIn: Engler A, Prantl K, eds. Die nat{\"u}rliche Pflanzenfamilien},
	volume = {2nd edition, vol. 19a, section 2:},
	number = {Leipzig, Engelmann.},
	year = {1931},
	pages = {144-184. },
	author = {Engler, A.}
}
