Krishna Subba Rao Pulugurta Venkata Satyavathi Lakshmi Jagadamba Pulugurtha Viswanadham Balla Invertibility Issues of Truncated Polynomials in NTRU Cryptosystems. 34-37 2008 Security and Management conf/csreaSAM/2008 db/conf/csreaSAM/csreaSAM2008.html#PulugurtaPB08