"Congrès." . . "Langues." . . "International conference on minority languages (4 : 1989 : Leeuwarden, The Netherlands)" . . . "International Conference on Minority Languages (4 : 1989 : Leeuwarden)" . . . "Minories lingüístiques Congressos." . . "International Conference on Minority Languages (4th : 1989 : Leeuwarden, Netherlands)" . . . "International Conference on Minority Languages (4th 1989 Leeuwarden, Netherlands)" . "Minderheidstalen." . . "SOCIAL SCIENCE Discrimination & Race Relations." . . "Sprachliche Minderheit Kongressbericht." . . "Minorités linguistiques Congrès." . . "Minorités linguistiques." . . "Congressen (vorm)" . "Congressen (vorm)"@en . . . . . . . . . "Fourth International Conference on Minority Languages" . "Fourth International Conference on Minority Languages"@en . . "Leeuwarden (1989)" . "Fourth International Conference on minority languages" . . "Fourth international conference on minority languages"@en . "Fourth international conference on minority languages" . "Third International Conference on Minority Languages" . . . . . "Fourth International Conference on Minority Languages [1989, Leeuwarden]" . . . . . . . . . . . . . . . . . . . "Fourth International Conference on Minority Languages : June 1989, Ljouwert/Leeuwarden, the Netherlands" . "Conference papers and proceedings" . "Conference papers and proceedings"@en . . . . . . . . . . "Electronic books"@en . . . . . . "Fourth International conference on minority languages" . "Kongress." . . "International conference on minority languages (04 : 1989 : Leeuwarden, Pays-Bas)" . . . "International Conference on Minority Languages (4th)" . . . "International Conference on Minority Languages (4th : 1989 : Leenwarden, Netherlands)" . . . "International Conference on Minority Languages (4t : 1989 : Leeuwarden)" . . . "International Conference on Minority Languages (1989 : Leeuwarden)" . . . "Sprachliche Minderheit." . . . . "Minderheitensprache." . . "International Conference on Minority Languages <4, 1989, Leeuwarden>" . . . "MERCATOR." . .