Paul V. Mockapetris. Domain names - concepts and facilities. RFC, 1034:1-55, November 1987. [doi]
@article{rfc1034, title = {Domain names - concepts and facilities}, author = {Paul V. Mockapetris}, year = {1987}, month = {November}, doi = {10.17487/RFC1034}, url = {https://doi.org/10.17487/RFC1034}, researchr = {https://researchr.org/publication/rfc1034}, cites = {0}, citedby = {0}, journal = {RFC}, volume = {1034}, pages = {1-55}, }