TY - JOUR AU - R.M. Morris TI - The internal problems of two-dimensional potential theory JO - Mathematische Annalen PY - 1939 SP - 374 EP - 400 VL - 116 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MAN_1939__116_160006/ ID - MAN_1939__116_160006 ER -