TY - JOUR AU - Yu. A. Izrael AU - F. Ya. Rovinskii TI - Monitoring of background pollution of natural environment JO - Doklady Akademii Nauk PY - 1982 SP - 1109 EP - 1112 VL - 264 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1982_264_5_a22/ LA - ru ID - DAN_1982_264_5_a22 ER -