APA

Pchelintsev V. A., .Estimates for Variation of the First Dirichlet Eigenvalue of the Laplace Operator. : .

Chicago

Pchelintsev V A, .Estimates for Variation of the First Dirichlet Eigenvalue of the Laplace Operator. : .

Harvard

Pchelintsev V. A., .Estimates for Variation of the First Dirichlet Eigenvalue of the Laplace Operator. : .

MLA

Pchelintsev V A, .: . .