Robert Thomas 0001. On the problem of signature authentication for network mail. RFC, 644:1-3, July 1974. [doi]
@article{rfc644, title = {On the problem of signature authentication for network mail}, author = {Robert Thomas 0001}, year = {1974}, month = {July}, doi = {10.17487/RFC0644}, url = {https://doi.org/10.17487/RFC0644}, researchr = {https://researchr.org/publication/rfc644}, cites = {0}, citedby = {0}, journal = {RFC}, volume = {644}, pages = {1-3}, }