Referenz Grotesk by the Typographic Research Lab Open2Type is a contemporary typeface full of references referring to the type design history of Stuttgart State Academy of Art and Design. Its typographic history holds a broad spectrum of shapes and characters, including F.H. Ernst Schneidler (1882–1956), Imre Reiner (1900–1987), Walter Brudi (1907–1987), Kurt Weidemann (1922–2011) and Frank Heine (1964–2003).