ON THE EXISTENCE OF A VARIATIONAL PRINCIPLE FOR AN OPERATOR EQUATION WITH SECOND DERIVATIVE WITH RESPECT TO "TIME" Статья Savchin V.M., Budochkina S.A. Mathematical Notes. Том 80. 2006. С. 83-90
ON THE STRUCTURE OF A VARIATIONAL EQUATION OF EVOLUTION TYPE WITH THE SECOND T-DERIVATIVE Статья Savchin V.M., Budochkina S.A. Differential Equations. Том 39. 2003. С. 127-134
ON THE STRUCTURE OF A LIE-ADMISSIBLE ALGEBRA IN THE SPACE OF GATEAUX DIFFERENTIABLE OPERATORS Статья SAVCHIN V.M. Mathematical Notes. Том 55. 1994. С. 103-104
THE CONSTRUCTION OF A SEMIBOUNDED FUNCTIONAL FOR A BOUNDARY-VALUE PROBLEM FOR THE NONLINEAR UNSTEADY NAVIER-STOKES EQUATIONS Статья SAVCHIN V.M. Differential Equations. Том 30. 1994. С. 149-155
ON THE STRUCTURE OF VARIATIONAL EQUATIONS WITH THE SYMMETRICAL OPERATOR D DT Статья SAVCHIN V.M. Differential Equations. Том 29. 1993. С. 1532-1537
A CRITERION OF THE EXISTENCE OF GENERALIZED INTEGRAL VARIATIONAL-PRINCIPLES FOR GIVEN EQUATIONS Статья SAVCHIN V.M. Differential Equations. Том 29. 1993. С. 1235-1241