EBSEES: 125 hits for Opera on page 4

The European Bibliography of Slavic and East European Studies (EBSEES) collects books, journal articles, reviews and dissertations from Eastern Europe (former countries of Eastern Bloc) which were published in Belgium, Germany, Finland, France, Great Britain, the Netherlands, Austria and Switzerland from 1991 to 2007. The segment "Literature" and "Culture" of the European Bibliography of Slavic and East European Studies contains 18.000 bibliographic entries (from the total asset of 85.000). More information can be found here.

Your search for Opera provides 125 hits
31	Yolanta Jacobs, Arthur, in: Opera, Feb., 1994, p. 241
32	Poland: Penderecki in perspective Kański, Józef, in: Opera, March, 1994, p. 352-54
33	Hungary: historical debut Kertész, Iván, in: Opera, Sept., 1994, p. 1083-84
34	Austria: Stanislavsky's Onegin Norton-Welsh, Christopher, in: Opera, Sept., 1994, p. 1054-57
35	Slovak Republic: National opera Norton-Welsh, Christopher, in: Opera, Nov., 1994, p. 1332-33
36	Sarajevo Milnes, Rodney, in: Opera, Oct., 1994, p. 1223
37	Russia: controversial Igor Parkin, A., in: Opera, April, 1994, p. 476-77
38	Shostakovich meets Offenbach Pountney, David, in: Opera, Oct., 1994, p. 1160-65
39	Czech Republic: justice done Slavíková, Jitka, in: Opera, Aug., 1994, p. 943-44
40	Paris: the Kirov moves in Kasow, Joel, in: Opera, March, 1995, p. 331-33

The European Bibliography of Slavic and East European Studies (EBSEES) - 1991-2007