TY - JOUR AU - V. P. Burichenko TI - On a~special loop, the discon form, and the lattice connected with~$O_7(3)$ JO - Sbornik. Mathematics PY - 1993 SP - 145 EP - 167 VL - 74 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_1993_74_1_a11/ LA - en ID - SM_1993_74_1_a11 ER -