(EN) Andrew Newton, Replacing the Whois Protocol: IRIS and the IETF's CRISP Working Group, in IEEE Internet Computing, vol. 10, n. 4, luglio 2006, pp. 79–84, DOI:10.1109/MIC.2006.86. URL consultato il 1º giugno 2015 (archiviato dall'url originale il 2 giugno 2015).
«The Nicname/Whois protocol has served well, but it remains unchanged since it was first published in the early 1980s, despite great change in the infrastructure and administration of the Internet. There is now more diversity with domain names and IP networks and associated contacts, as well as among the users submitting queries via Whois. The protocol is now so fragmented in terms of information flow and output that queries yield inconsistent results under current conditions. To address the needs of today's Internet, the IETF Cross Registry Internet Service Protocol (CRISP) working group is developing a new protocol, the Internet Registry Information Service (IRIS), to replace Whois.»