Stetkar, Henrik D'Alembert's and Wilson's Functional Equations on Step 2 Nilpotent Group / By H. Stetkar ; University of Aarhus, Dep. of Math. - Aarhus : S. n., 2002. - 24 p. - Preprint Series No. 8 . Bibliogr.: p. 23-24 Subjects--Topical Terms: Mathematics--Functional equations on groups