Ringel, Gerhard. — Färbungsprobleme auf Flächen und Graphen.
Berlin, VEB Deutscher Verlag der Wissenschaften, 1959 24.5 x 17.5 cm, half cloth, viii, 132 pages, with figures, text aged and toned, although in very good condition, see picture. Volume 2 in the series Mathematische Monographien, edited by Wilhelm Blaschke.
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Numero libro:
84055
€20.00 ($22.04 | £16.68 | ¥3,521)
