TY - JOUR AU - Aatos Lahtinen TI - On P-solvable functions for Δu = Pu on open Riemann surfaces JO - Annales Fennici Mathematici PY - 1975 VL - 581-600 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1975.583/ DO - 10.5186/aasfm.1975.583 LA - en ID - AFM_1975_581-600_a17 ER -