Zhiwei Wang Xuyun Nie Shihui Zheng Yixian Yang Zhihui Zhang A New Construction of Multivariate Public Key Encryption Scheme through Internally Perturbed Plus. 1-13 2008 ICCSA (2) http://dx.doi.org/10.1007/978-3-540-69848-7_1 conf/iccsa/2008-2 db/conf/iccsa/iccsa2008-2.html#WangNZYZ08