Bruckner, Elke, and Karin Knaup
(1993):
Women´s and men´s friendships in a comparative perspective.
European Sociological Review, 9, issue 3, pp. 249-266.
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Müller, Walter, and Wolfgang Karle
(1993):
Social Selection in Educational Systems in Europe.
European Sociological Review, 9, issue 1, pp. 1-22.
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Rothenbacher, Franz
(1993):
National and international approaches in social reporting.
Social Indicators Research, 29, pp. 1-62.
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