Jak Tuggener, Ballnächte 1934 - 1950 : [on the occasion of the Exhibition "Jakob Tuggener: Ball Nights" at the Fotostiftung Schweiz, Winterthur, Switzerland (November 27 through February 27, 2005) and at the Fotografische Sammlung, Museum Folkwang, Essen (April 16 through June 12, 2005)] - [1. ed.]