TY - JOUR AU - A. T. Il'ichev TI - Effective wavelength of envelope waves on the water surface beneath an ice sheet: small amplitudes and moderate depths JO - Teoretičeskaâ i matematičeskaâ fizika PY - 2021 SP - 387 EP - 408 VL - 208 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_2021_208_3_a1/ LA - ru ID - TMF_2021_208_3_a1 ER -