Michael B. Spring. The Origin and Use of Copymarks in Electronic Publishing. Journal of Documentation, 45(2):110-123, 1989. [doi]
@article{Spring89, title = {The Origin and Use of Copymarks in Electronic Publishing}, author = {Michael B. Spring}, year = {1989}, doi = {10.1108/eb026841}, url = {http://dx.doi.org/10.1108/eb026841}, researchr = {https://researchr.org/publication/Spring89}, cites = {0}, citedby = {0}, journal = {Journal of Documentation}, volume = {45}, number = {2}, pages = {110-123}, }