Yuval Filmus, Massimo Lauria, Mladen Miksa, Jakob Nordström, Marc Vinyals. Towards an Understanding of Polynomial Calculus: New Separations and Lower Bounds - (Extended Abstract). In Fedor V. Fomin, Rusins Freivalds, Marta Z. Kwiatkowska, David Peleg, editors, Automata, Languages, and Programming - 40th International Colloquium, ICALP 2013, Riga, Latvia, July 8-12, 2013, Proceedings, Part I. Volume 7965 of Lecture Notes in Computer Science, pages 437-448, Springer, 2013. [doi]