2019-06-01, Sommerfeld, Peter
2016, Sommerfeld, Peter
2018, Sommerfeld, Peter
2016, Hüttemann, Matthias, Rotzetter, Fabienne, Amez-Droz, Pascal, Gredig, Daniel, Sommerfeld, Peter
2018, Sommerfeld, Peter, Solèr, Maria, Süsstrunk, Simon
2016, Sommerfeld, Peter, Shaw, Ian, Hardy, Mark, Marsh, Jeanne