Prokip V.M., “The multiplicativity of the Smith normal form,”, Linear Multilinear Algebra, 38:3 (1995), 189–192
V. M. Prokip, “Ob obschikh unitalnykh delitelyakh matrichnykh mnogochlenov nad proizvolnym polem”, Matem. sb., 184:4 (1993), 41–50; V. M. Prokip, “On common unital divisors of matrix polynomials over an arbitrary field”, Russian Acad. Sci. Sb. Math., 78:2 (1994), 427–435
V. M. Prokip, “O multiplikativnosti kanonicheskikh diagonalnykh form matrits”, Izv. vuzov. Matem., 1992, № 7, 60–62; Russian Math. (Iz. VUZ), 36:7 (1992), 58–60
V. M. Prokip, “On common unital divisors of matrix polynomials over an arbitrary field”, Mat. Sb., 184:4 (1993), 41–50; Russian Acad. Sci. Sb. Math., 78:2 (1994), 427–435
1992
2.
V. M. Prokip, “Multiplicativity of canonical diagonal forms of matrices”, Izv. Vyssh. Uchebn. Zaved. Mat., 1992, no. 7, 60–62; Russian Math. (Iz. VUZ), 36:7 (1992), 58–60