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Tarsadalomkutatas (Social Science Research) > 2008 > 25 > 4 > 403-434
Tudomanyos es Muszaki Tajekoztatas ( Scientific and Technical Information;... > 2007 > 54 > 6 > 243-248
Tudomanyos es Muszaki Tajekoztatas ( Scientific and Technical Information;... > 2004 > 51 > 3/4 > 124-127
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