Spin-spin correlations in the tt'-Hubbard model T. Husslein, D.M. Newns, H.G. Mattutis, P.C. Pattnaik, I. Morgenstern, J.M. Singer, W. Fettes et C. Baur J. Phys. I France, 4 11 (1994) 1573-1576 DOI: 10.1051/jp1:1994101
