Kapali P. Eswaran Jim Gray Raymond A. Lorie Irving L. Traiger The Notions of Consistency and Predicate Locks in a Database System. 624-633 1976 19 Commun. ACM 11 db/journals/cacm/cacm19.html#EswarranGLT76 CACMs1/CACM19/P624.pdf db/journals/cacm/EswarranGLT76.html