George Apostolopoulos Sanjay Kamat Doug Williams Roch Guérin Ariel Orda Tony Przygienda QoS Routing Mechanisms and OSPF Extensions. 1999 1-50 RFC 2676 August https://doi.org/10.17487/RFC2676 https://www.wikidata.org/entity/Q47466836 db/journals/rfc/rfc2600-2699.html