@article {Otrebski1963,
	title = {Baltisch-Slawische Miszellen},
	journal = {Lingua Posnaniensis},
	volume = {9},
	year = {1963},
	pages = {115 {\textendash} 121},
	author = {Otr{\k e}bski, Jan}
}
@article {Otrebski1949,
	title = {La formation des noms physiographiques en lithuanien},
	journal = {Lingua Posnaniensis},
	volume = {1},
	year = {1949},
	pages = {199 {\textendash} 243},
	author = {Otr{\k e}bski, Jan}
}
