@article{Galanenko_1999 author = {B. V. Galanenko}, title = {Extension of the Method of Cross Sections to the Problem of Wave Propagation in an Elastic Layer with Smoothly Varying Parameters}, journal = {International Journal of Fluid Mechanics Research}, issn = {2152-5102}, year = {1999}, volume = {26}, number = {5-6}, pages = {732--741} }