TY - GEN T1 - Challenges in geometry for mathematical Olympians past and present A1 - Bradley, Christopher J. LA - English PP - Oxford PB - Oxford University Press YR - 2005 UL - https://colectivo.uloyola.es/Record/ELB164775 OP - 205 CN - QA459 .B73 2005 SN - 9780191524264 KW - Geometry : Problems, exercises, etc. KW - Mathematics : Problems, exercises, etc. KW - Electronic books. ER -