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by Pyrhonen , Juha; Hrabovcova , Valeria; Semken, R. Scott
by Pyrhonen , Juha; Jokinen , Tapani; Hrabovcova , Valeria
by Juha Pyrhonen (Lappeenranta University of Technology); Tapani Jokinen (Helsinki University of Technology); Valeria Hrabovcova (University of Zilina)