TY - JOUR AU - L. I. Tsinober AU - V. G. Balakirev TI - Structural-geometric analysis of the model of $\alpha$-quartz Brazilian twin boundary JO - Doklady Akademii Nauk PY - 1981 SP - 846 EP - 850 VL - 259 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1981_259_4_a14/ LA - ru ID - DAN_1981_259_4_a14 ER -