Malcolm C. Easton, Ronald Fagin
CACM
An elementary proof is presented of an asymptotic estimate for the number (up to isomorphism) of finite relational structures, under a quite general definition of "relational structure". © 1977.
Malcolm C. Easton, Ronald Fagin
CACM
Ronald Fagin, Larry Stockmeyer
IJCV
Ronald Fagin, Joseph Y. Halpern
Journal of Philosophical Logic
Ronald Fagin, Benny Kimelfeld, et al.
SIGMOD Record