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- [1] STATE-OF-THE-ART - OPERA-AMERICA SUMMARIZES ITS 1991-92 'PROFESSIONAL OPERA SURVEY' FOR 'OPERA NEWS' OPERA NEWS, 1993, 58 (05): : 26 - 27
- [4] IN THE SHADOW OF THE OPERA + THE STATE OF THE VIENNA-STATE-OPERA-BALLET BALLETT INTERNATIONAL, 1994, (04): : 20 - 20
- [9] STATE-OF-THE-ART - OPERA-AMERICA SUMMARIZES ITS 1990-91 PROFESSIONAL-OPERA-SURVEY FOR 'OPERA NEWS' OPERA NEWS, 1992, 57 (05): : 32 - 33