ON THE QUESTION OF POPULAR MOVEMENTS AND INTERNAL OPPOSITION IN FRANCE AT THE TURN OF THE 13TH-14TH CENTURIES Статья KEROV V.L. BULGARIAN HISTORICAL REVIEW-REVUE BULGARE D HISTOIRE. PUBL HOUSE BULGARIAN ACAD SCI. 1986. С. 46-60
TRANSVECTOR ALGEBRAS IN THE THEORY OF THE REPRESENTATIONS OF REDUCTIVE LIE-GROUPS Статья ZHELOBENKO D.P. Doklady Akademii nauk SSSR. Mezhdunarodnaya Kniga, Moscow, Russian Federation. Том 288. 1986. С. 32-35