Superconductivity with s and p symmetries in an extended Hubbard model with correlated hopping A. A. Aligia, E. Gagliano, L. Arrachea and K. Hallberg Eur. Phys. J. B, 5 3 (1998) 371-378 Published online: 15 October 1998 DOI: 10.1007/s100510050456