|   | by: J. Aczel · J. DhombresHardcover details (UK). details (USA). details (Germany). details (Canada). ISBN: 978-0-521-35276-5 ISBN-10: 0-521-35276-2 Cambridge University Press · 1989 | 
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| 2008 | Paperback | Functional Equations in Several Variables (Encyclopedia of Mathematics and its Applications) |