Ned Freed, Keith Moore. MIME Parameter Value and Encoded Word Extensions: Character Sets, Languages, and Continuations. RFC, 2231:1-10, November 1997. [doi]
@article{rfc2231, title = {MIME Parameter Value and Encoded Word Extensions: Character Sets, Languages, and Continuations}, author = {Ned Freed and Keith Moore}, year = {1997}, month = {November}, doi = {10.17487/RFC2231}, url = {https://doi.org/10.17487/RFC2231}, researchr = {https://researchr.org/publication/rfc2231}, cites = {0}, citedby = {0}, journal = {RFC}, volume = {2231}, pages = {1-10}, }