TY - JOUR AU - Rosalind Cecily Young TI - Functions of .... defined by addition or functions of intervals in n-dimensional formulation. JO - Mathematische Zeitschrift PY - 1929 SP - 171 EP - 216 VL - 29 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZ_1929__29_168065/ ID - MZ_1929__29_168065 ER -