@article{DAN_1960_130_6_a17, author = {Pu Fu-chuoh}, title = {An approximate method for calculating the ground state of an isotropic antiferromagnetic}, journal = {Doklady Akademii Nauk}, pages = {1244--1247}, publisher = {mathdoc}, volume = {130}, number = {6}, year = {1960}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1960_130_6_a17/} }