proceedings of the International Conference, held at Barcelona, Spain, 30 June - 4 July 1997 Photovoltaic Solar Energy Conference 1997 : Barcelona, Spain) creator Ossenbrink, H. A. ed. Helm, P. ed. Ehmann, H. ed. text conference publication uk Bedford, UK H.S. Stephens & Associates 1997 monographic eng 2 v. edited by H. A. Ossenbrink, P. Helm and H. Ehmann Photovoltaic power generation Congresses Solar cells Congresses TK2960 P47 1997 1901675035 (set) 180500 20260818114421.0