The epistemological foundations of geometry in 19th century
Philosophia Scientiae, Actes du colloque France Autriche. Paris et Nancy 29 mai au 1er juin 1995. Interférences et transformations dans la philosophie française et autrichienne (Mach, Poincaré, Duhem, Boltzmann), Tome 3 (1998-1999) no. 2, pp. 183-201. 
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Kvasz, Ladislav. The epistemological foundations of geometry in 19th century. Philosophia Scientiae, Actes du colloque France Autriche. Paris et Nancy 29 mai au 1er juin 1995. Interférences et transformations dans la philosophie française et autrichienne (Mach, Poincaré, Duhem, Boltzmann), Tome 3 (1998-1999) no. 2, pp. 183-201. http://archive.numdam.org/item/PHSC_1998-1999__3_2_183_0/

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