%0 Journal Article %A Eckert, Michael %T The practical theorist : Sommerfeld at the crossroads of mathematics, physics and technology %J Philosophia Scientiae %D 2003 %P 165-188 %V 7 %N 2 %I Éditions Kimé %U http://www.numdam.org/item/PHSC_2003__7_2_165_0/ %G en %F PHSC_2003__7_2_165_0