James R. Davin, Jeffrey D. Case, Mark S. Fedor, Martin L. Schoffstall. Simple Gateway Monitoring Protocol. RFC, 1028:1-35, November 1987. [doi]
@article{rfc1028, title = {Simple Gateway Monitoring Protocol}, author = {James R. Davin and Jeffrey D. Case and Mark S. Fedor and Martin L. Schoffstall}, year = {1987}, month = {November}, doi = {10.17487/RFC1028}, url = {https://doi.org/10.17487/RFC1028}, researchr = {https://researchr.org/publication/rfc1028}, cites = {0}, citedby = {0}, journal = {RFC}, volume = {1028}, pages = {1-35}, }