How to combine widening and narrowing for non-monotonic systems of equations

Kalmer Apinis, Helmut Seidl, Vesal Vojdani. How to combine widening and narrowing for non-monotonic systems of equations. In Hans-Juergen Boehm, Cormac Flanagan, editors, ACM SIGPLAN Conference on Programming Language Design and Implementation, PLDI '13, Seattle, WA, USA, June 16-19, 2013. pages 377-386, ACM, 2013. [doi]