Kirksey, Kenneth (25 December 1991). "What You Need To Know About Modems". Hundreds of PC-based bulletin board systems have installed the SpeedModem Champ. http://www.umich.edu/~archive/mac/misc/documentation/telecomminfo.txt
"Compucom Speedmodem...The Affordable High Speed Modem", CompuCom, 1991 http://timeline.textfiles.com/1991/06/00/1/FILES/speedmodem.txt
"Compucom Speedmodem...The Affordable High Speed Modem", CompuCom, 1991 http://timeline.textfiles.com/1991/06/00/1/FILES/speedmodem.txt
David Coursey, "CompuCom Offers Low-Cost 9,600-BPS Modem", InfoWorld, 1 April 1991, pp. 31 https://books.google.com/books?id=0FAEAAAAMBAJ&pg=PA31
Patrick Chen, "Modem Tutorial - Introduction", The Joy of Telecomputing, 25 December 1991 http://www.lsu.edu/OCS/its/unix/tutorial/ModemTutorial/MT-BuyingModem.html
Patrick Chen, "Modem Tutorial - Introduction", The Joy of Telecomputing, 25 December 1991 http://www.lsu.edu/OCS/its/unix/tutorial/ModemTutorial/MT-BuyingModem.html
Adam Engst, "El Cheapo Modem" Archived 2012-04-18 at the Wayback Machine, TidBITS, 8 April 1991 http://www.greenstone.org/greenstone3/nzdl;jsessionid=FC817F656E0CED0D868FA57FEF9783FB?a=d&c=tidbits&d=HASH86ba055397f46d88db264b.5&sib=1&oc=0&p.s=ClassifierBrowse&p.sa=&p.a=b&p.c=tidbits
Ken Sukimoto, "96INTRO.TXT" http://gopherproxy.meulie.net/gopher.meulie.net/0/textfiles/bbs/BBSLISTS/96intro93.txt
"CompuCom modem blitz is planned for August", InfoWorld, 22 July 1991, p. 40 https://books.google.com/books?id=f1AEAAAAMBAJ&pg=PA40
Bill Karwin, "Modem Standards" Archived 2016-03-04 at the Wayback Machine, 8 July 1994 http://world.std.com/help/topic/modems/standards.html
David Nugent, "The Distribution Nodelist", 7 February 1996 http://ftsc.org/docs/fts-0005.003