RT Conference Proceedings SR 00 A1 Rogner, H.-H. T1 Hydrogen technologies and the technology learning curve YR 1996 FD 23-28 June 1996 SP 1839 OP 1849 T2 Proceedings of the 11th World Hydrogen Energy Conference Hydrogen '96 AV Published LK https://pure.iiasa.ac.at/id/eprint/4844/