Herzog: Golden Century Of Porn Vol.2 (1970s) Series: Love Film 672: Die Stefeprufung 1977 (Gudrun Grau, Irene Falcke, Johanna Ebertseder, Petra Abstein) Paradiso Film 689: Die Bohr-Praxis 1979 (Johanna Ebertseder, Sylvia Engelmann) Paradiso Film 692: Die Saulen der Akropolis 1979 (Angelina Brasini, Christine Klinger) Paradiso Film 691: First Love 1979 (Renate Knottnerus, Serena)