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> C. G Lekkerkerker
C. G Lekkerkerker
title
ISBN-13
(ISBN-10)
year of publication
Geometry of numbers
978-O-72O4-21O8-8
(O-72O4-21O8-X)
1969
C. G.
·
C L
·
G L.
C. G. Leukefeld