TY - JOUR AU - Yu. I. Belyaev TI - Quantitative estimation of slight admixtures of rare-earth elements by spectral analysis without the use of a reference standard JO - Doklady Akademii Nauk PY - 1960 SP - 95 EP - 97 VL - 133 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1960_133_1_a23/ LA - ru ID - DAN_1960_133_1_a23 ER -