Waibel, A.F.; Frisch, W. (30 April 1989). "The Lower Engadine Window: sediment deposition and accretion in relation to the plate-tectonic evolution of the Eastern Alps". Tectonophysics. 162 (3–4): 229–241. Bibcode:1989Tectp.162..229W. doi:10.1016/0040-1951(89)90246-1.
Waibel, A.F.; Frisch, W. (30 April 1989). "The Lower Engadine Window: sediment deposition and accretion in relation to the plate-tectonic evolution of the Eastern Alps". Tectonophysics. 162 (3–4): 229–241. Bibcode:1989Tectp.162..229W. doi:10.1016/0040-1951(89)90246-1.