Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL "Aitzetmüller, Rudolf",Belegstellenverzeichnis der altkirchenslavischen Verbalformen,,U. W. Weiher,1977,Monumenta linguae Slavicae dialecti veteris : fontes et dissertationes,,,,https://cir.nii.ac.jp/crid/1130000797173568512