http://www.rfc-editor.org/rfc/rfc1836.txt
RFC 1836: Representing the O/R Address hierarchy in the X.500 Directory Information Tree, S. Kille1995-08-01T23:00:00-00:00This document defines a representation of the O/R Address hierarchy in the Directory Information Tree [6, 1]. This memo defines an Experimental Protocol for the Internet community.