A.N.Abyzov and D.T.Tapkin. On certain classes of rings of formal matrices
M.A.Alekhina and O.Yu.Barsukova. Upper bound of unreliability of circuits in a basis consisting of Webb functions
P.V.Bibikov. Classification of control ensembles of projective points
G.A.Grigoryan. Global solvability of scalar Riccati equations
V.P.Derevenskii. Exact differential equations over matrix skew series
I.A.Zelenskaya. System of singularly perturbed equations with differential turning point of the first kind
I.B.Badriev, M.V.Makarov, and V.N.Paimushin. On the interaction of composite plate having a vibration-absorbing covering with incident acoustic wave