Poster workshop at PaTI by Erich Brechbühl and Felix Pfäfflii

Poster workshop at PaTI by Erich Brechbühl and Felix Pfäfflii

Poster workshop at PaTI by Erich Brechbühl and Felix Pfäfflii  1 Poster workshop at PaTI by Erich Brechbühl and Felix Pfäfflii 2 Poster workshop at PaTI by Erich Brechbühl and Felix Pfäfflii 3 Poster workshop at PaTI by Erich Brechbühl and Felix Pfäfflii 4 Poster workshop at PaTI by Erich Brechbühl and Felix Pfäfflii 5