TY - JOUR AU - S. A. Stepin TI - Spectral analysis of a singular boundary-value problem modeling the vibrations of the atmosphere JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 1990 SP - 90 EP - 91 VL - 24 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_1990_24_4_a15/ LA - ru ID - FAA_1990_24_4_a15 ER -