Friedman, M., & Schäffner, W. On folding: Introduction of a new field of interdisciplinary research / Michael Friedman. Wolfgang Schäffner. On folding : towards a new field of interdisciplinary research.(2016).
Lua i Stíl Chicago (17ú heag.)Friedman, Michael, agus Wolfgang Schäffner. "On Folding: Introduction of a New Field of Interdisciplinary Research / Michael Friedman. Wolfgang Schäffner." On Folding : Towards a New Field of Interdisciplinary Research.(2016) .
Lua MLA (8ú heag.)Friedman, Michael, agus Wolfgang Schäffner. "On Folding: Introduction of a New Field of Interdisciplinary Research / Michael Friedman. Wolfgang Schäffner." On Folding : Towards a New Field of Interdisciplinary Research.(2016), .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.