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Results: 4
Authors: Christoph Ehlert, Jochen Kluve, Sandra Schaffner
Country: Germany
Publication year: 2012
Authors: Jouko Natti, Aho Simo, Jukka Halme
Country: Finland
Publication year: 2000
Authors: Miroslav Stefanik
Country: Slovakia
Publication year: 2013
Authors: Knut Roed, Simen Markussen
Country: Norway
Publication year: 2016