TY - JOUR AU - Lewis, John L. TI - On critical points of \(p\) harmonic functions in the plane JO - Electronic journal of differential equations PY - 1994 VL - 1994 IS - 3 UR - http://geodesic.mathdoc.fr/item/EJDE_1994__1994_3_a0/ LA - en ID - EJDE_1994__1994_3_a0 ER -