@Book{02921145X,
title="Encyclopaedia of mathematics",
year="1988",
month="2001",
publisher="Kluwer Acad. Publ. [u.a.]",
address="Dordrecht [u.a.]",
keywords="Mathematics; Encyclopedias",
note="[managing ed.: M. Hazewinkel]",
note="An updated and annotated translation of the Soviet 'Mathematical encyclopaedia'",
note="Fr{\"u}her im Verlag Reidel, Dordrecht [u.a.], erschienen",
isbn="1556080107",
language="English"
}