[IEEE Third International Kharkov Symposium 'Physics and Engineering of Millimeter and Submillimeter Waves' - Kharkov, Ukraine (15-17 Sept. 1998)] Third International Kharkov Symposium 'Physics and Engineering of Millimeter and Submillimeter Waves'. MSMW'98. Symposium Proceedings (Cat. No.98EX119) - An effective solution of electromagnetic integral equations in the boundary value problems of millimeter wave diffraction based on atomic functions