Blass, A., Anselmetti, F. S., Grosjean, M., & Sturm, M. (2005). The last 1300 years of environmental history recorded in the sediments of Lake Sils (Engadine, Switzerland). Eclogae Geologicae Helvetiae, 98(3), 319-332. https://doi.org/10.1007/s00015-005-1166-5