Tudomanyos es Muszaki Tajekoztatas ( Scientific and Technical Information; Hungarian journal of library and information science)
Tudomanyos es Muszaki Tajekoztatas ( Scientific and Technical Information;... > 2004 > 51 > 3/4 > 128-131
Tudomanyos es Muszaki Tajekoztatas ( Scientific and Technical Information;... > 2004 > 51 > 9 > 371-378