TY - JOUR AU - E. V. Kuz'min TI - Singlet states in Hubbard model with $U=\infty$ JO - Doklady Akademii Nauk PY - 1993 SP - 36 EP - 38 VL - 331 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1993_331_1_a9/ LA - ru ID - DAN_1993_331_1_a9 ER -