@article {Bernard1989, title = {Introduction {\`a} l{\textquoteright}{\'e}tude de l{\textquoteright}aoriste vieux bulgare}, journal = {Palaeobulgarica / Старобългаристика}, volume = {13}, year = {1989}, pages = {8{\textendash}20}, author = {Bernard, Roger} } @article {Bernard1982, title = {Un emprunt fait par le grec bizantin au vieux bulgare: λοσνίκιον {\quotedblbase}couverture de lit{\textquotedblleft}}, journal = {Palaeobulgarica / Старобългаристика}, volume = {6}, year = {1982}, pages = {98{\textendash}102}, author = {Bernard, Roger} }