William Allen Simpson. PPP in Frame Relay. RFC, 1973:1-10, June 1996. [doi]
@article{rfc1973, title = {PPP in Frame Relay}, author = {William Allen Simpson}, year = {1996}, month = {June}, doi = {10.17487/RFC1973}, url = {https://doi.org/10.17487/RFC1973}, researchr = {https://researchr.org/publication/rfc1973}, cites = {0}, citedby = {0}, journal = {RFC}, volume = {1973}, pages = {1-10}, }