Kunz, H.Pfister, Charles-EdouardVuillermot, P. A.2008-11-272008-11-272008-11-27197510.1016/0375-9601(75)90799-9https://infoscience.epfl.ch/handle/20.500.14299/31937WOS:A1975AY26500004Correlation inequalities for some classical spin vector modelstext::journal::journal article::research article