Arranga, Edmund C.; Coyle, Frank P.. Object-Oriented COBOL. Cambridge University Press, February 1998 — 15 bet. ISBN 978-0-13-261140-4. „Object-Oriented COBOL's style reflects the influence of Smalltalk and C++.“
doi.org
dx.doi.org
Sammet, Jean E. (March 2000). "The real creators of Cobol". IEEE Software17 (2): 30–32. doi:10.1109/52.841602. ISSN1937-4194. "The Short-Range Committee worked diligently from June 1959 on, but there were great difficulties in having a fairly large committee try to create a programming language. In November, the Short-Range Committee chair appointed six people to develop specifications for consideration: William Selden and Gertrude Tierney (IBM), Howard Bromberg and Norman Discount (RCA), and Vernon Reeves and Jean E. Sammet (Sylvania Electric Products). We worked for two full weeks (including some round-the-clock sessions) in November 1959 and sent the proposed specifications to the full Short-Range Committee, which accepted almost all of them. After some editing (by the same six people), we turned in the specifications as a final report in December to the Executive Committee, which accepted them in January 1960. After some further editing, the Government Printing Office issued Cobol 60. […] [Grace Hopper] did not participate in its work except through the general guidance she gave to her staff who were direct committee members. Thus, while her indirect influence was very important, regrettably the frequent repeated statements that "Grace Hopper developed Cobol" or "Grace Hopper was a codeveloper of Cobol" or "Grace Hopper is the mother of Cobol" are just not correct."
Arranga, Edmund C.; Coyle, Frank P. (March 1997). "Cobol: Perception and Reality". Computer30 (3): 127. doi:10.1109/2.573683. ISSN0018-9162.
Radin, George (1978). "The early history and characteristics of PL/I". in Wexelblat, Richard L.. History of Programming Languages. Academic Press. 1981. p. 572. doi:10.1145/800025.1198410. ISBN0-12-745040-8.
omg.org
Ho, Wing Hong„Introduction to EGL“. IBM Software Group (2007-yil 7-may). 2019-yil 13-yanvarda asl nusxadan arxivlangan. Qaraldi: 2019-yil 12-yanvar.
sysmaker.com
„What is PL/B – The Programming Language for Business?“. sysmaker.com. Infopro, Inc.. — „"... conversion to an alternate, extended COBOL or to ANSI COBOL is very difficult, if at all possible"“. Qaraldi: 2022-yil 22-aprel.
web.archive.org
Ho, Wing Hong„Introduction to EGL“. IBM Software Group (2007-yil 7-may). 2019-yil 13-yanvarda asl nusxadan arxivlangan. Qaraldi: 2019-yil 12-yanvar.
worldcat.org
Sammet, Jean E. (March 2000). "The real creators of Cobol". IEEE Software17 (2): 30–32. doi:10.1109/52.841602. ISSN1937-4194. "The Short-Range Committee worked diligently from June 1959 on, but there were great difficulties in having a fairly large committee try to create a programming language. In November, the Short-Range Committee chair appointed six people to develop specifications for consideration: William Selden and Gertrude Tierney (IBM), Howard Bromberg and Norman Discount (RCA), and Vernon Reeves and Jean E. Sammet (Sylvania Electric Products). We worked for two full weeks (including some round-the-clock sessions) in November 1959 and sent the proposed specifications to the full Short-Range Committee, which accepted almost all of them. After some editing (by the same six people), we turned in the specifications as a final report in December to the Executive Committee, which accepted them in January 1960. After some further editing, the Government Printing Office issued Cobol 60. […] [Grace Hopper] did not participate in its work except through the general guidance she gave to her staff who were direct committee members. Thus, while her indirect influence was very important, regrettably the frequent repeated statements that "Grace Hopper developed Cobol" or "Grace Hopper was a codeveloper of Cobol" or "Grace Hopper is the mother of Cobol" are just not correct."
Arranga, Edmund C.; Coyle, Frank P. (March 1997). "Cobol: Perception and Reality". Computer30 (3): 127. doi:10.1109/2.573683. ISSN0018-9162.
