Lang, W; Cremers, J.; Beck, A.; Manara, J.: ‘New envelopes for old buildings – the potential of using membrane systems for the thermal retrofitting of existing buildings’, Paper for the Third International Symposium on Life-Cycle Civil Engineering (IALCCE 2012) held in Vienna October 2012, Proceedings: Life-Cycle and Sustainability of Civil Infrastructure Systems – Edited by Alfred Strauss, Dan M. Frangopol and Konrad Bergmeister; CRC Press 2012; Print ISBN: 978-0-415-62126-7, eBook ISBN: 978-0-203-10336-4, p. 1737-1744