maintained by Gabriele Nebe and Neil Sloane (lower bounds) Conway, John Horton; Smith, Derek A., On Quaternions and Octonions: Their Geometry, Arithmetic
Andrew Hattersley Craig Jon Hawker Ronald Thomas Hay Ian David Hickson Peter Horton Jeremy Hutson 维多利亚·卡斯皮 Lewis Edward Kay Ondrej Krivanek Angus Iain Lamond