EBSEES: 2 hits for 1989-1991

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 1989-1991 provides 2 hits
1	"American policy toward Serbia/Montenegro/Yugoslavia: congressional debates & policy formation, 1989-2003", in: Serbien und Montenegro: Raum und Bevölkerung - Geschichte - Sprache und Literatur - Kultur - Politik - Gesellschaft - Wirtschaft - Recht. Hrsg. von Walter Lukan, Ljubinka Trgovčević und Dragan Vukčević in Zusammenarbeit mit Valeria Heuberger, Thede Kahl, Andrej Mitrović, Miroslav Polzer und Mirjam Polzer-Srienz Ramet, Sabrina P., in: Österreichische Osthefte 47, 1-4, 2005, pp. 647-672
2	Les économistes russes entre orthodoxie marxiste et radicalisme libéral Chmatko, Natalia, in: Genèses. Sciences sociales et Histoire 47, 2002, pp. 123-139

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

Les économistes russes entre orthodoxie marxiste et radicalisme libéral