D. Aronson, and H. Weinberger. Partial differential equations and related topics (Program, Tulane Univ., New Orleans, La., 1974), Lecture Notes in Math., Vol. 446, Springer, Berlin, (1975)
B. Blaser, D. Weinberger, and J. Trippi. D.GO, volume 390 of ACM International Conference Proceeding Series, page 19-24. Digital Government Research Center, (2009)