WhoIs Protocol

INTERACTIVE WHOIS
Referral Whois Protocol (RWhois)
Referral Whois (RWhois) Protocol V1.5
Referral Whois Protocol (RWhois) 2.0
Who is .com?: Learning to Parse WHOIS Records
Replacing the Whois Protocol: IRIS and the IETF's CRISP Working Group
Replacing the Whois Protocol
The traditional WHOIS protocol has several important shortcomings, and over the past few years several approaches to a better Regist...
Research on Privacy Protection of WHOIS Information in DNS
WHOIS, JOINT WHOIS AND CRISP