System r: A relational data base management system (1979)

by M M Astrahan, M W Blasgen, D D Chamberlin, J Gray, F W King B G Lindsay, R A Lorie, J W Mehl, T G Price, G R Putzolu, M Schkolnick, P G Selinger, D R Slutz, H R Strong, P Tiberio, I L Traiger, B W Wade, R A Yost
Venue:In IEEE Computer