Itamar Francez. No i-Sums for Nissim (and Shalom). In Orna Grumberg, Michael Kaminski, Shmuel Katz, Shuly Wintner, editors, Languages: From Formal to Natural, Essays Dedicated to Nissim Francez on the Occasion of His 65th Birthday. Volume 5533 of Lecture Notes in Computer Science, pages 97-106, Springer, 2009. [doi]
Abstract is missing.