TY - JOUR AU - N. V. Pirogova TI - Reflection spectra of polycrystalline cadmium sulphide films at $77,3^\circ$~К JO - Doklady Akademii Nauk PY - 1961 SP - 1413 EP - 1415 VL - 139 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1961_139_6_a40/ LA - ru ID - DAN_1961_139_6_a40 ER -