Humbert, N., Penzel, W., Frith, F., Zorn, J., & Lindsay, A. (1990). Step across the border: A ninety minute celluloid improvisation / by Nicolas Humbert & Werner Penzel. With Fred Frith. Cine Nomad.
Lua i Stíl Chicago (17ú heag.)Humbert, Nicolas, Werner Penzel, Fred Frith, John Zorn, agus Arto Lindsay. Step Across the Border: A Ninety Minute Celluloid Improvisation / by Nicolas Humbert & Werner Penzel. With Fred Frith. München: Cine Nomad, 1990.
Lua MLA (8ú heag.)Humbert, Nicolas, et al. Step Across the Border: A Ninety Minute Celluloid Improvisation / by Nicolas Humbert & Werner Penzel. With Fred Frith. Cine Nomad, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.