%% You should probably cite rfc7281 instead of this I-D. @techreport{melnikov-authentication-results-smime-06, number = {draft-melnikov-authentication-results-smime-06}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-melnikov-authentication-results-smime/06/}, author = {Alexey Melnikov}, title = {{Authentication-Results Registration for S/MIME signature verification}}, pagetotal = 8, year = 2013, month = nov, day = 12, abstract = {RFC 7001 specifies the Authentication-Results header field for conveying results of message authentication checks. This document defines a new authentication method to be used in the Authentication- Results header field for S/MIME related signature checks.}, }