@article{Vorgul_2003 author = {I. Yu. Vorgul and A. V. Vorgul}, title = {Solving Electrodynamics Problems in Time-Varying Media: Different Approaches Based on the Integral Equation}, journal = {Telecommunications and Radio Engineering}, issn = {0040-2508}, year = {2003}, volume = {60}, number = {7-9}, }