Albert B. Schwarzkopf Roberto J. Mejias Jon Jasperson Carol S. Saunders Hermann Gruenwald Effective practices for IT skills staffing. 83-88 2004 47 Commun. ACM 1 http://doi.acm.org/10.1145/962081.962084 db/journals/cacm/cacm47.html#SchwarzkopfMJSG04