TY - JOUR AU - A. B. Plachenov TI - Acoustic, electromagnetic and elastic wavefield energy expression via its asymptotics at large times and distances JO - Zapiski Nauchnykh Seminarov POMI PY - 2020 SP - 269 EP - 287 VL - 493 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_2020_493_a17/ LA - ru ID - ZNSL_2020_493_a17 ER -