@incollection{AST_1976__40__181_0, author = {Slawny, J.}, title = {Phase transitions in ferromagnetic spin systems at low temperatures}, booktitle = {International conference on dynamical systems in mathematical physics}, series = {Ast\'erisque}, pages = {181--182}, publisher = {Soci\'et\'e math\'ematique de France}, number = {40}, year = {1976}, language = {en}, url = {http://www.numdam.org/item/AST_1976__40__181_0/} }