CHAN, Lois Mai, ZENG, Marcia Lei. Ensuring interoperability among subject vocabularies and knowledge organization schemes: a methodological analysis. In: 68th IFLA General Conference and Council, August 18th - 24th 2002, Glasgow, Scotland: [Proceedings] [online]. 2002 [cit. 2013-06-24]. Dostupné z: http://archive.ifla.org/IV/ifla68/papers/008-122e.pdf.
Kopie dostupná volně také z repozitáře Arizony: http://arizona.openrepository.com/arizona/handle/10150/105548.
Kopie dostupná také z repozitáře CiteSeer: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.108.4773
Dostupné volně z archivu IFLA: http://archive.ifla.org/IV/ifla68/papers/008-122e.pdf.