Conference paper
Composition with target constraints
Marcelo Arenas, Ronald Fagin, et al.
ICDT 2010
Marcelo Arenas, Ronald Fagin, et al.
ICDT 2010
Moses Charikar, Ronald Fagin, et al.
STOC 2000
C.J. Date, Hugh Darwen
Communications of the ACM
Ronald Fagin
Journal of Computer and System Sciences