New Developments in High Temperature Superconductivity : Proceedings of the 2nd Polish-US Conference Held at Wroc.aw and Karpacz, Poland, 17.21 August 1998 - Jan Klamut, Boyd W. Veal, Bogdan M. Dabrowski, Piotr W. Klamut, Maciej Kazimierski ((Lecture Notes in Physics))