Source : Free On-Line Dictionary of Computing

RFC 1938
     
         The {RFC} describing a proposed
        {standard} for a {One-Time Password} system, obsoleted by {RFC
        2289}.
     
        ["A One-Time Password System.", N. Haller & C. Metz].
     
        {(rfc:1938)}.
     
        (2000-03-05)