Vol. 66 No. 4 (2021)

V.M. Mazur, Z.M. Bigan, P.S. Derechkey, O.M. Pop

Y.A. Abbo

A.A. Al-Sammarraie, F.A. Ahmed, A.A. Okhunov

V.I. Vishnyakov

V.I. Maslov, O.K. Cheremnykh, A.P. Fomina, R.I. Kholodov, O.P. Novak, R.T. Ovsiannikov

Ya.F. Leleko, D.L. Grekov

R. Bilyk, S. Mudry

V.V. Romaka, Yu.V. Stadnyk, P.F. Rogl, L.P. Romaka, V.Ya. Krayovskyy, A.Ya. Horpenyuk, A.M. Horyn

A.I. Pogodin, V.I. Studenyak, M.Y. Filep, O.P. Kokhan, I.P. Studenyak, P. Kúš

S.V. Gabielkov, I.V. Zhyganiuk