<Discontinued> Catalogue of Algebraic Systems/Groups of
Small Order <Discontinued>
Catalogue of Algebraic Systems was written by John Pedersen. John moved and I
inherited it. The catalogue was quite incomplete. It had a few mistakes in it and
keeping it up was too much trouble. Meanwhile much more material on algebraic
systems has appeared on the web. For
example, try Wikipeida, MathWorld, or PlanetMath .