Philip Hawkes Cameron McDonald Michael Paddon Gregory G. Rose Miriam Wiggers de Vries Specification for NLSv2. 57-68 2008 The eSTREAM Finalists http://dx.doi.org/10.1007/978-3-540-68351-3_6 series/lncs/4986 db/series/lncs/lncs4986.html#HawkesMPRV08