PICASSO - An Aid to an End-User Facility.

conf/sigmod/77 Paul G. Sorenson Joseph A. Wald PICASSO - An Aid to an End-User Facility. 30-39 1977 SIGMOD Conference db/conf/sigmod/sigmod77.html#SorensonW77 http://doi.acm.org/10.1145/509404.509411 db/conf/sigmod/SorensonW77.html SIGMOD77/P030.PDF ... ... ... conf/sigmod/Codd71 persons/Codd74 ... ... ... ... ... ... ...