@article {1184,
	title = {The lichen genus Amygdalaria (Porpidiaceae) in North America},
	journal = {Herzogia},
	volume = {7},
	year = {1987},
	pages = {493-521},
	author = {Brodo, IM and H. Hertel}
}
@article {1225,
	title = {Flechten der {\"o}stlichen Schwarzmeer-Region in der T{\"u}rkei},
	journal = {Herzogia},
	volume = {17},
	year = {2004},
	pages = {137-156},
	author = {John, Volker and Breuss, Othmar}
}
