Nahmmacher, P., Schmid, E., Hirth, L., Knopf, B. (2014): Carpe Diem: A Novel Approach to Select Representative Days for Long-Term Power System Models with High Shares of Renewable Energy Sources, (Carpe Diem: A Novel Approach to Select Representative Days for Long-Term Power System Models with High Shares of Renewable Energy Sources)(USAEE Working Paper; 14-194), Cleveland : United States Association for Energy Economics.https://doi.org/10.2139/ssrn.2537072