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Danani, Andrea and Pelizzola, Alessandro (1993) Cluster Variation Approach to the Antiferromagnetic Transition of the tJ Model. Modern Physics Letters B, 7 (27). pp. 1761-1771.
Danani, Andrea and Pelizzola, Alessandro (1992) Cluster Variation Approach to the Antiferromagnetic Transition of the t-J Model. Modern Physics Letters B, 7 (27). p. 1583. ISSN 0217-9849