Hydrogenation of thin Y-Ba-Cu-O films: Electrical transport and structure properties of YBa2Cu3O7 and YBa2Cu4O8RemoveG. Dortmann, J. Erxmeyer, S. Blässer, J. Steiger, T. Paatsch, A. Weidinger, H. Karl, and B. StritzkerPhys. Rev. B 49, 600 (1994)