TY - JOUR AU - E.T. Whittaker TI - On the partial differential equations of mathematical physics. JO - Mathematische Annalen PY - 1903 SP - 333 EP - 355 VL - 57 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MAN_1903__57_158101/ ID - MAN_1903__57_158101 ER -