TY - BOOK AU - Flannery, Sarah, TI - In code: : a mathematical journey SN - 9781861972712 U1 - 510.92 FLA PY - 2001/// CY - London PB - : Profile, KW - Mathematics KW - Flannery, Sarah, - KW - Cryptographers -- Ireland -- Biography KW - Data encryption (Computer science) KW - Cryptographers KW - Ireland KW - Sarah Flannery; David Flannery KW - and In code : a mathematical journey ER -