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by Gentle, James E.; Hardle, Wolfgang Karl; Mori, Yuichi
by Hardle, Wolfgang Karl; Spokoiny, Vladimir; Panov, Vladimir; et al.
by Hardle, Wolfgang
by Borak, Szymon; Hardle, Wolfgang Karl; Lopez-Cabrera, Brenda
by Cizek, Pavel; Hardle, Wolfgang Karl; Weron, Rafal
by Wolfgang Hardle; Bernd Ronz