[DART_1] Thomas E. Kurtz, "BASIC", In
History of programming languages. Association for Computing Machinery. June 1978. pp. 515–537
acm_open_pdf
[RAIL_1] Edsger W. Dijkstra, "Making a Translator for ALGOL 60", in
Supplement Number 10 to the ALGOL Bulletin.
Mathematisch Centrum, Amsterdam, 1961.
UT_pdf pp.22ff
[RAIL_2] B. Randell and L.J. Russell, "ALGOL 60 Implementation: The Translation and Use of ALGOL 60 Programs on a Computer",
Academic Press, 1964
chm_pdf pp 148ff
[SBC_1] IBM DPD Chronology.
webpage (see under 1968)
[SBC_2] New York Times. 1973."I.B.M. TO SELL UNIT TO CONTROL DATA IN SETTLING SUITS". Jan. 16. 1973.
webpage (digitized_from_print_archive)
[SBC_3] SBC. 1970. "CALL/360 Basic Reference Handbook".
bitsavers_pdf
[SDS_1] "Reference manual for SDS 920"
bitsavers_pdf
[TS_1] "Time Sharing System Scorecard", Computer Research Corporation, Newton MA, 1967
bitsavers_pdf