Marshall T. Rose. Post Office Protocol: Version 3: Extended service offerings. RFC, 1082:1-11, November 1988. [doi]
@article{rfc1082, title = {Post Office Protocol: Version 3: Extended service offerings}, author = {Marshall T. Rose}, year = {1988}, month = {November}, doi = {10.17487/RFC1082}, url = {https://doi.org/10.17487/RFC1082}, researchr = {https://researchr.org/publication/rfc1082}, cites = {0}, citedby = {0}, journal = {RFC}, volume = {1082}, pages = {1-11}, }