00614naa#a2200169#i#450# EN\RIOR\bibl\7232 20240502104625.4 20220406b2022####ek#y0engy0150####ca RU The grand duchy of Lithuania as a possible center of unification of Russian lands Conference article/thesis Moscow Publishing Center RIOR 2022 5 с. Conference article/thesis local Право. Юридические науки. 34 Право. Юридические науки. 67 bbk Saratilo Maria Vasilyevna riorpub.com