Olha Shkaravska Ron van Kesteren Marko C. J. D. van Eekelen Polynomial Size Analysis of First-Order Functions. 351-365 2007 conf/tlca/2007 TLCA http://dx.doi.org/10.1007/978-3-540-73228-0_25 db/conf/tlca/tlca2007.html#ShkaravskaKE07