Journal article (2015) - CC Laczny (author), T Sternal (author), P Wilmes (author), V Plugaru (author), E.A. Hendriks (author), P Gawron (author), A Atashpendar (author), HH Margossian (author), S Coronado (author), L.J.P. van der Maaten (author), N Vlassis (author)