Cambridge project (Panel Session): The consistent system. - Cynthia Crawford; John Klensin; Oliver G. Selfridge (ACM Annual Conference (2), 1972)

The Cambridge project's consistent system. - Douwe B. Yntema; Arthur P. Dempster; John P. Gilbert; John C. Klensin; Wren M. McMains; William Porter; Jeffrey P. Stamen; Raymond A. Wiesen (ACM Annual Conference (2), 1972)

Short-term friendly and long-term hostile? - John C. Klensin (CHI (2), 1981)

A Statistical Database Component of a Data Analysis and Modelling System: Lessons From Eight Years of User Experience. - John C. Klensin (SSDBM, 1983)

Statistical Data Management Requirements and the SQL Standards - An Evolving Comparison. - John C. Klensin; Roselyn M. Romberg (SSDBM, 1988)

SMTP Service Extensions. - John Klensin; Ned Freed; Marshall T. Rose; Einar Stefferud; David H. Crocker (RFC, 1993)

SMTP Service Extension for Message Size Declaration. - John Klensin; Ned Freed; Keith Moore (RFC, 1993)

SMTP Service Extension for 8bit-MIMEtransport. - John Klensin; Ned Freed; Marshall T. Rose; Einar Stefferud; Dave Crocker (RFC, 1994)

Multipurpose Internet Mail Extensions (MIME) Part Four: Registration Procedures. - Ned Freed; John Klensin; Jon Postel (RFC, 1996)

IMAP/POP AUTHorize Extension for Simple Challenge/Response. - John C. Klensin; Randy Catoe; Paul Krumviede (RFC, 1997)

Consensus and the Web. - Roy Rada; Carl Cargill; John Klensin (Commun. ACM, 1998)

Domain Names and Company Name Retrieval. - John C. Klensin; Ted Wolf; Gary W. Oglesby (RFC, 1998)

Message Submission. - Randall Gellens; John C. Klensin (RFC, 1998)

Guide to Administrative Procedures of the Internet Infrastructure. - Zita M. Wenzel; John C. Klensin; Randy Bush; Steven Huter (RFC, 2000)

Reflections on the DNS, RFC 1591, and Categories of Domains. - John C. Klensin (RFC, 2001)

Request to Move STD 39 to Historic Status. - Robert Braden; Randy Bush; John C. Klensin (RFC, 2001)

3GPP-IETF Standardization Collaboration. - Karl Heinz Rosenbrock; Raj Sanmugam; Scott O. Bradner; John C. Klensin (RFC, 2001)

The History and Context of Telephone Number Mapping (ENUM) Operational Decisions: Informational Documents Contributed to ITU-T Study Group 2 (SG2). - John Klensin; Internet Architecture Board (RFC, 2002)

Role of the Domain Name System (DNS). - John C. Klensin (RFC, 2003)

Application Techniques for Checking and Transformation of Names. - John C. Klensin (RFC, 2004)

A Model for IETF Process Experiments. - John C. Klensin; Spencer Dawkins (RFC, 2004)

Terminology for Describing Internet Connectivity. - John C. Klensin (RFC, 2005)

National and Local Characters for DNS Top Level Domain (TLD) Names. - John C. Klensin (RFC, 2005)

Media Type Specifications and Registration Procedures. - Ned Freed; John C. Klensin (RFC, 2005)

Multipurpose Internet Mail Extensions (MIME) Part Four: Registration Procedures. - Ned Freed; John C. Klensin (RFC, 2005)

Suggested Practices for Registration of Internationalized Domain Names (IDN). - John C. Klensin (RFC, 2005)

Review and Recommendations for Internationalized Domain Names (IDNs). - John Klensin; Patrik Fältström; Cary Karp; Internet Architecture Board (RFC, 2006)

Registration and Administration Recommendations for Chinese Domain Names. - Xiaodong Lee; Wei Mao; Erin Chen; Nai-Wen Hsu; John C. Klensin (RFC, 2006)

Handling Normative References to Standards-Track Documents. - John C. Klensin; Sam Hartman (RFC, 2007)

Independent Submissions to the RFC Editor. - John C. Klensin; David Thaler (RFC, 2007)

ASCII Escaping of Unicode Characters. - John C. Klensin (RFC, 2008)

Unicode Format for Network Interchange. - John C. Klensin; Michael A. Padlipsky (RFC, 2008)

A Generalized Unified Character Code: Western European and CJK Sections. - John C. Klensin; Harald Tveit Alvestrand (RFC, 2008)

A Registry for SMTP Enhanced Mail System Status Codes. - Tony Hansen; John C. Klensin (RFC, 2008)

Simple Mail Transfer Protocol. - John C. Klensin (RFC, 2008)

FTP Command and Extension Registry. - John C. Klensin; Alfred Hoenes (RFC, 2010)

Internationalized Domain Names for Applications (IDNA): Definitions and Document Framework. - John C. Klensin (RFC, 2010)

Internationalized Domain Names in Applications (IDNA): Protocol. - John C. Klensin (RFC, 2010)

Internationalized Domain Names for Applications (IDNA): Background, Explanation, and Rationale. - John C. Klensin (RFC, 2010)

Internationalized Domain Names Registration and Administration Guidelines for European Languages Using Cyrillic. - Sergey Sharikov; Desiree Miloshevic; John C. Klensin (RFC, 2010)

Deprecating Unicode Language Tag Characters: RFC 2482 is Historic. - Kenneth Whistler; Glenn Adams; Martin J. Dürst; Randy Presuhn; John C. Klensin (RFC, 2010)

IAB Thoughts on Encodings for Internationalized Domain Names. - David Thaler; John C. Klensin; Stuart Cheshire (RFC, 2011)

SMTP Service Extension for 8-bit MIME Transport. - John C. Klensin; Ned Freed; Marshall T. Rose; Dave Crocker (RFC, 2011)

Defining the Role and Function of IETF Protocol Parameter Registry Operators. - Danny McPherson; Olaf M. Kolkman; John C. Klensin; Geoff Huston; Internet Architecture Board (RFC, 2011)

Terminology Used in Internationalization in the IETF. - Paul E. Hoffman; John C. Klensin (RFC, 2011)

Message Submission for Mail. - Randall Gellens; John C. Klensin (RFC, 2011)

Overview and Framework for Internationalized Email. - John Klensin; Yangwoo Ko (RFC, 2012)

Media Type Specifications and Registration Procedures. - Ned Freed; John C. Klensin; Tony Hansen (RFC, 2013)

Principles for Unicode Code Point Inclusion in Labels in the DNS. - Andrew Sullivan; David Thaler; John C. Klensin; Olaf M. Kolkman (RFC, 2013)

SMTP 521 and 556 Reply Codes. - John C. Klensin (RFC, 2015)

Uniform Resource Names (URNs). - Peter Saint-Andre; John C. Klensin (RFC, 2017)

Uniform Resource Name (URN) Namespace Registration Transition. - John C. Klensin; Juha Hakala (RFC, 2017)

DNS Privacy, Authorization, Special Uses, Encoding, Characters, Matching, and Root Structure: Time for Another Look? - John C. Klensin (RFC, 2018)

IETF Administrative Support Activity 2.0: Consolidated Updates to IETF Administrative Terminology. - John C. Klensin (RFC, 2020)

Defining the Role and Function of IETF Protocol Parameter Registry Operators. - Danny McPherson; Olaf Kolkman; John C. Klensin; Geoff Huston (RFC, 2020)

Internationalized Domain Names for Applications (IDNA) Review for New Unicode Versions. - John C. Klensin; Patrik Fältström (RFC, 2020)

The LIMITS SMTP Service Extension. - Ned Freed; John C. Klensin (RFC, 2024)