On rational approximations of algebraic numbers D 3 . Tasoev, B.G. — 2001 Vladikavkazskiĭ Matematicheskiĭ Zhurnal
On the best rational approximations to transcendental numbers ψ ( x ) · e x . II. Tasoev, B.G. — 2001 Vladikavkazskiĭ Matematicheskiĭ Zhurnal
On the set of values of the Euler function. Tasoev, B.G. — 1999 Vladikavkazskiĭ Matematicheskiĭ Zhurnal