Birger Hjørland. The Concept of 'subject' in Information Science. Journal of Documentation, 48(2):172-200, 1992. [doi]
@article{Hjorland92, title = {The Concept of 'subject' in Information Science}, author = {Birger Hjørland}, year = {1992}, doi = {10.1108/eb026895}, url = {http://dx.doi.org/10.1108/eb026895}, researchr = {https://researchr.org/publication/Hjorland92}, cites = {0}, citedby = {0}, journal = {Journal of Documentation}, volume = {48}, number = {2}, pages = {172-200}, }