Double=double impact? a critical view at international co-authorship in chemistry
 Artikel Jurnal
National characteristics in international scientific co-authorship relayion
 Artikel Jurnal
Andrews, Donald H., author
Chemistry : a humanistic view
McGraw-HIll, 1974
 Buku Teks
Investigating the concentration within a research community using joint publications and co-authorship via intermediaries
 Artikel Jurnal
Newcomb, Horace
Television: the critical view / edited by Horace Newcomb
Oxford University Press, 1979
 Buku Teks
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