Tudomanyos es Muszaki Tajekoztatas ( Scientific and Technical Information; Hungarian journal of library and information science)
Tudomanyos es Muszaki Tajekoztatas ( Scientific and Technical Information;... > 2009 > 56 > 11/12 > 515-519
Tudomanyos es Muszaki Tajekoztatas ( Scientific and Technical Information;... > 2009 > 56 > 11/12 > 515-519