@article {Trummer1997,
	title = {Glagolica und Kyrillica und die Nasalvokalbuchstaben},
	journal = {Palaeobulgarica / Старобългаристика},
	volume = {21},
	year = {1997},
	pages = {72{\textendash}77},
	author = {Trummer, Manfred}
}
