Rexx (English Wikipedia)

Virtual Machine/System Product - System Product - Interpreter Reference - Release 3 (PDF) (First ed.). IBM. September 1983. SC24-5239-0. Retrieved November 6, 2024.
TSO Extensions Version 2 - Procedures Language MVS/REXX Reference (PDF) (Fifth ed.). IBM. August 1991. SC28-1883-4. Retrieved November 6, 2024.
"Procedures Language". Systems Application Architecture - An Overview (PDF) (First ed.). IBM. May 1987. p. 40. GC26-4341-0. Retrieved November 6, 2024.
Procedures Language/2 - REXX Reference - Version 2.00 (PDF). OS/2 2.00 - Technical Library (First ed.). IBM. December 1991. S10G-6268-00. Retrieved November 6, 2024.
IBM Virtual Machine Facility /370: EXEC User's Guide (PDF) (Second ed.). International Business Machines Corporation. April 1975. GC20-1812-1.
EXEC 2 Reference (PDF) (Second ed.). International Business Machines Corporation. April 1982. p. 92. SC24-5219-1. Archived from the original (PDF) on April 2, 2020. Retrieved March 28, 2019.

copyrightsearch.org (Global: low place; English: low place)

Lundin, Leigh; Woodruff, Mark (April 23, 1987). "T/REXX, a REXX compiler for CMS". U.S. Copyright Office (TXu000295377). Washington, DC: Independent Intelligence Incorporated. Archived from the original on March 3, 2016. Retrieved February 20, 2010.

doi.org (Global: 2^nd place; English: 2^nd place)

M. F. Cowlishaw (1984). "The design of the REXX language" (PDF). IBM Systems Journal (PDF). 23 (4). IBM Research: 333. doi:10.1147/sj.234.0326. Retrieved January 23, 2014. Could there be a high astonishment factor associated with the new feature? If a feature is accidentally misapplied by the user and causes what appears to him to be an unpredictable result, that feature has a high astonishment factor and is therefore undesirable. If a necessary feature has a high astonishment factor, it may be necessary to redesign the feature.

edm2.com (Global: low place; English: low place)

"REXX Tips & Tricks:REXXUTIL functions". EDM2: The Electronic Developer Magazine for OS/2. Retrieved October 14, 2023.

github.com (Global: 380^th place; English: 337^th place)

Vlachoudis, Vassilis (June 2011). Written at CERN. "BRexx". San Francisco, California: GitHub. Archived from the original on June 12, 2025. Retrieved June 24, 2025.

ibm.com (Global: 1,369^th place; English: 968^th place)

publibz.boulder.ibm.com

"Catalog of All Documents (filter=rexx)". IBM library server. 2005. Archived from the original on February 15, 2013. Retrieved February 10, 2014.

rexxinfo.org (Global: low place; English: low place)

Fosdick, Howard (2025). Rexx Programmer's Reference (PDF) (2 ed.). Apex, North Carolina: Rexx Language Association. ISBN 9789403745527. OCLC 1475017186. Archived (PDF) from the original on April 3, 2025. Retrieved May 26, 2025.
Ashley, W David; Flatscher, Rony G; Hessling, Mark; McGuire, Rick; Peedin, Lee; Sims, Oliver; Steinbock, Erich; Wolfers, Jon (January 19, 2024). "8. Rexx Utilities (RexxUtil)" (PDF). Open Object Rexx: Reference (PDF) (5.1.0 ed.). Rexx Language Association. pp. 512–566. Archived (PDF) from the original on May 25, 2024. Retrieved May 26, 2025.

rexxla.org (Global: low place; English: low place)

M. F. Cowlishaw. "IBM REXX Brief History". IBM. Retrieved August 15, 2006.
Melinda Varian. "REXX Symposium, May 1995".
"Rexx Implementations". RexxLA. Archived from the original on September 24, 2006. Retrieved August 15, 2006.
"American National Standard for Information Systems – Programming Language REXX" (PDF). The Rexx Language Association. Washington D.C.: American National Standards Institute (ANSI). X3J18-199X. Archived (PDF) from the original on April 3, 2025. Retrieved June 7, 2025.
"RexxLA - Symposium Schedule".

sourceforge.io (Global: low place; English: low place)

regina-rexx.sourceforge.io

"Regina Rexx Interpreter". Sourceforge. Retrieved October 14, 2023.

sourceforge.net (Global: 1,842^nd place; English: 1,520^th place)

regina-rexx.sourceforge.net

Mark Hessling (October 25, 2012). "Regina Rexx Interpreter". SourceForge project regina-rexx. Retrieved February 10, 2014.

speleotrove.com (Global: low place; English: low place)

M. F. Cowlishaw (February 18, 1981). "REX -- A Command Programming Language". SHARE. Retrieved August 15, 2006.

tiobe.com (Global: low place; English: low place)

"TIOBE Index for January 2018". TIOBE. Eindhoven, Netherlands. January 2018. Archived from the original on February 3, 2018. Retrieved June 7, 2025.

tufts.edu (Global: 192^nd place; English: 165^th place)

cs.tufts.edu

M. F. Cowlishaw (1984). "The design of the REXX language" (PDF). IBM Systems Journal (PDF). 23 (4). IBM Research: 333. doi:10.1147/sj.234.0326. Retrieved January 23, 2014. Could there be a high astonishment factor associated with the new feature? If a feature is accidentally misapplied by the user and causes what appears to him to be an unpredictable result, that feature has a high astonishment factor and is therefore undesirable. If a necessary feature has a high astonishment factor, it may be necessary to redesign the feature.

web.archive.org (Global: 1^st place; English: 1^st place)

"Catalog of All Documents (filter=rexx)". IBM library server. 2005. Archived from the original on February 15, 2013. Retrieved February 10, 2014.
EXEC 2 Reference (PDF) (Second ed.). International Business Machines Corporation. April 1982. p. 92. SC24-5219-1. Archived from the original (PDF) on April 2, 2020. Retrieved March 28, 2019.
Lundin, Leigh; Woodruff, Mark (April 23, 1987). "T/REXX, a REXX compiler for CMS". U.S. Copyright Office (TXu000295377). Washington, DC: Independent Intelligence Incorporated. Archived from the original on March 3, 2016. Retrieved February 20, 2010.
Fosdick, Howard (2025). Rexx Programmer's Reference (PDF) (2 ed.). Apex, North Carolina: Rexx Language Association. ISBN 9789403745527. OCLC 1475017186. Archived (PDF) from the original on April 3, 2025. Retrieved May 26, 2025.
"Rexx Implementations". RexxLA. Archived from the original on September 24, 2006. Retrieved August 15, 2006.
Vlachoudis, Vassilis (June 2011). Written at CERN. "BRexx". San Francisco, California: GitHub. Archived from the original on June 12, 2025. Retrieved June 24, 2025.
"American National Standard for Information Systems – Programming Language REXX" (PDF). The Rexx Language Association. Washington D.C.: American National Standards Institute (ANSI). X3J18-199X. Archived (PDF) from the original on April 3, 2025. Retrieved June 7, 2025.
"TIOBE Index for January 2018". TIOBE. Eindhoven, Netherlands. January 2018. Archived from the original on February 3, 2018. Retrieved June 7, 2025.
Ashley, W David; Flatscher, Rony G; Hessling, Mark; McGuire, Rick; Peedin, Lee; Sims, Oliver; Steinbock, Erich; Wolfers, Jon (January 19, 2024). "8. Rexx Utilities (RexxUtil)" (PDF). Open Object Rexx: Reference (PDF) (5.1.0 ed.). Rexx Language Association. pp. 512–566. Archived (PDF) from the original on May 25, 2024. Retrieved May 26, 2025.

worldcat.org (Global: 4^th place; English: 4^th place)

search.worldcat.org

Fosdick, Howard (2025). Rexx Programmer's Reference (PDF) (2 ed.). Apex, North Carolina: Rexx Language Association. ISBN 9789403745527. OCLC 1475017186. Archived (PDF) from the original on April 3, 2025. Retrieved May 26, 2025.

Rexx (English Wikipedia)

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github.com (Global: 380th place; English: 337th place)

ibm.com (Global: 1,369th place; English: 968th place)

publibz.boulder.ibm.com

rexxinfo.org (Global: low place; English: low place)

rexxla.org (Global: low place; English: low place)

sourceforge.io (Global: low place; English: low place)

regina-rexx.sourceforge.io

sourceforge.net (Global: 1,842nd place; English: 1,520th place)

regina-rexx.sourceforge.net

speleotrove.com (Global: low place; English: low place)

tiobe.com (Global: low place; English: low place)

tufts.edu (Global: 192nd place; English: 165th place)

cs.tufts.edu

web.archive.org (Global: 1st place; English: 1st place)

worldcat.org (Global: 4th place; English: 4th place)

search.worldcat.org

bitsavers.org (Global: 3,844^th place; English: 1,960^th place)

doi.org (Global: 2^nd place; English: 2^nd place)

github.com (Global: 380^th place; English: 337^th place)

ibm.com (Global: 1,369^th place; English: 968^th place)

sourceforge.net (Global: 1,842^nd place; English: 1,520^th place)

tufts.edu (Global: 192^nd place; English: 165^th place)

web.archive.org (Global: 1^st place; English: 1^st place)

worldcat.org (Global: 4^th place; English: 4^th place)