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KLEIN, F. & SOMMERFELD, A. Über die Theorie des Kreisels, 4 vols Leipzig (B. G. Teubner) 1897-1910. Petit in-4°, demi chagrin à coins tomes 1, 2 & 4 (usures et manque), tome 3 demi toile à coins, pp. 966 (numérotation continue pour les quatre volumes, avec quatre pages de préliminaires volumes 1 à 3 et viii pour le tome 4 + xii (catalogue d'éditeur). Signature 'O. Bolza' sur les pages de titre. E.O. Toujours l'œuvre de référence sur la théorie des gyroscopes (DSB VII, 399) Provenance : bibliothèque de Hans et Oscar BOLZA, puis par descendance.
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