Introduction to the DIAM Theory of Algebraic Access Graph.

conf/sigmod/81 M. Levin Introduction to the DIAM Theory of Algebraic Access Graph. 40-48 1981 SIGMOD Conference db/conf/sigmod/sigmod81.html#Levin81 SIGMOD81/P040.PDF http://doi.acm.org/10.1145/582318.582325 db/conf/sigmod/Levin81.html ... conf/sigmod/Schneider76 journals/tods/Codd79 ... ... ... ...