Tsutomu Sasao. On the numbers of variables to represent sparse logic functions. In Sani R. Nassif, Jaijeet S. Roychowdhury, editors, 2008 International Conference on Computer-Aided Design (ICCAD 08), November 10-13, 2008, San Jose, CA, USA. pages 45-51, IEEE, 2008. [doi]
Abstract is missing.