TY - JOUR AU - A. I. Boikova AU - N. A. Toropov AU - A. K. Kuznetsov TI - Silicates of rare-earth elements as crystallochemical indicators. Solid solutions of tri-calcium silicates with lanthanum oxiorthosilicate JO - Doklady Akademii Nauk PY - 1964 SP - 865 EP - 868 VL - 156 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1964_156_4_a23/ LA - ru ID - DAN_1964_156_4_a23 ER -