@article{MAT_1974_18_4_a2,
     author = {E. H. Lieb},
     title = {Residual entropy of square ice},
     journal = {Matematika},
     pages = {64--84},
     publisher = {mathdoc},
     volume = {18},
     number = {4},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MAT_1974_18_4_a2/}
}