by (Federal Republic of Germany)L.V.Beethoven;by (Spain)M.De Falla; by (Federal Republic of Germany)L.V.Beethoven; (United States)S.Barber; by (Federal Republic of Germany)L.Beltzmann;by (United Kingdom)M.G.Bowler; by (Federal Republic of Germany)L.Hormander;by (USSR)H.M.Srivastava; by (Federal Republic of Germany)Ludwig Van Beethoven;by (United States)Carol A.Saslow; by (Federal Republic of Germany)J.K.Goyal;by (USSR)M.L.Krasonv; by (Federal Republic of Germany)W.Demtroder;by (United States)M.D.Levenson; by (Federal Republic of Germany)V.L.Beethoven;by (Federal Republic of Germany)P.Album; by (Federal Republic of Germany)G.M.De La Penha;by (United States)M.E.Gurtin; by (Federal Republic of Germany)Ludwig Van Beethoven;by (Federal Republic of Germany)Ludwig Van Beet