David Mankins, Dan Franklin, A. D. Owen. Directory oriented FTP commands. RFC, 775:1-6, December 1980. [doi]
@article{rfc775, title = {Directory oriented FTP commands}, author = {David Mankins and Dan Franklin and A. D. Owen}, year = {1980}, month = {December}, doi = {10.17487/RFC0775}, url = {https://doi.org/10.17487/RFC0775}, researchr = {https://researchr.org/publication/rfc775}, cites = {0}, citedby = {0}, journal = {RFC}, volume = {775}, pages = {1-6}, }