@article {14564,
	title = {Exkursion der Ala nach Griechenland, 10-26 Mai 1980.},
	journal = {Ornithologische BeobachterOrnithologische Beobachter},
	volume = {77},
	number = {3},
	year = {1980},
	pages = {198-200.},
	keywords = {Aves},
	author = {Zuberb{\"u}hler, A.}
}
@article {11401,
	title = {Zwei unterschiedliche Rufe der Zwergohreule.},
	journal = {Ornithologische BeobachterOrnithologische Beobachter},
	volume = {66},
	year = {1969},
	pages = {97-110.},
	keywords = {Aves},
	author = {Scheer, U.}
}
@article {7817,
	title = {Ornithologische Beobachtungen aus Nordgriechenland.},
	journal = {Ornithologische BeobachterOrnithologische Beobachter},
	volume = {62},
	year = {1965},
	pages = {181-187.},
	keywords = {Aves},
	author = {Kn{\"o}tzsch, G.}
}
@article {2485,
	title = {<i>Muscicapa semitroquata</i> auf der Chalkidike.},
	journal = {Ornithologische BeobachterOrnithologische Beobachter},
	volume = {52},
	year = {1944},
	pages = {116-117},
	keywords = {Aves},
	author = {Bodenstein, G. and Stresemann, E.}
}
