?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Reflections+and+transformations%3A+a+mathematical+biography&rft.creator=Hoyles%2C+Celia&rft.contributor=Niss%2C+Mogens&rft.date=2008&rft.type=Proceedings+paper&rft.language=eng&rft.source=+++++In%3A+Niss%2C+Mogens%2C+(ed.)+++(pp.+pp.+255-265).+++(2008)+++++&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10001827%2F