Lloyd McIntyre, Graham Klyne. Internet Fax T.30 Feature Mapping. RFC, 2880:1-37, August 2000. [doi]
@article{rfc2880, title = {Internet Fax T.30 Feature Mapping}, author = {Lloyd McIntyre and Graham Klyne}, year = {2000}, month = {August}, doi = {10.17487/RFC2880}, url = {https://doi.org/10.17487/RFC2880}, researchr = {https://researchr.org/publication/rfc2880}, cites = {0}, citedby = {0}, journal = {RFC}, volume = {2880}, pages = {1-37}, }