TY - JOUR AU - H. R. Reeh TI - Problems of the ground state of the infinite Heisenberg antiferromagnet JO - Informatics and Automation PY - 1975 SP - 390 EP - 398 VL - 136 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TRSPY_1975_136_a28/ LA - en ID - TRSPY_1975_136_a28 ER -