:I can guess that there was some legal problem over Bernanos's libretto, but it is not mentioned, as it should be. Unfortunately, the citation offered in support of this sentence, which has a template that should link it to something in the list of References, has no target, and there is nothing actually corresponding. I suspect that the 1982 publication by Keith W. Daniel may be the one meant but, since this is a publication in the UMI series it is almost certainly a revised reprint of a dissertation, possibly from 1980. If the original dissertation is the intended source, it should be added to the reference list, since the page numbers may not correspond to the UMI published version. Thanks for pointing out this sloppy sentence.—