TY - JOUR AU - E. D. Lozanskiy TI - Townsend's ionization coefficient of $\mathrm{He}$ with allowance for indirect ionization JO - Doklady Akademii Nauk PY - 1968 SP - 315 EP - 318 VL - 183 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1968_183_2_a17/ LA - ru ID - DAN_1968_183_2_a17 ER -