Lillian N. Cassel Anneke Hacquebard Andrew D. McGettrick Gordon Davies Richard J. LeBlanc Charles Riedesel Yaakov L. Varol Gail T. Finley Samuel Mann Robert H. Sloan A synthesis of computing concepts. 162-172 2005 37 SIGCSE Bulletin 4 http://doi.acm.org/10.1145/1113847.1113894 db/journals/sigcse/sigcse37.html#CasselHMDLRVFMS05