SOLVABILITY PROBLEMS FOR A LINEAR HOMOGENEOUS FUNCTIONAL-DIFFERENTIAL EQUATION OF THE POINTWISE TYPE Статья Beklaryan L.A., Beklaryan A.L. Differential Equations. Том 53. 2017. С. 145-156
GROUPS OF LINE AND CIRCLE DIFFEOMORPHISMS. CRITERIA FOR ALMOST NILPOTENCY AND STRUCTURE THEOREMS Статья Beklaryan L.A. Sbornik Mathematics. Russian Academy of Sciences. Том 207. 2016. С. 1079-1099