Remote Mail Checking Protocol. - Steve Dorner; Pete Resnick (RFC, 1992)

Communicating Presentation Information in Internet Messages: The Content-Disposition Header. - Rens Troost; Steve Dorner (RFC, 1995)

Communicating Presentation Information in Internet Messages: The Content-Disposition Header Field. - Rens Troost; Steve Dorner; Keith Moore (RFC, 1997)