Petersen, Peter, SpringerLink (Online service)
Springer Science + Business Media, LLC
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Helgason, Sigurdur, SpringerLink (Online service)
Springer Science+Business Media, LLC
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Jost, Jürgen, SpringerLink (Online service)
Springer-Verlag Berlin Heidelberg
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Elworthy, K. David, Le Jan, Yves, Li, Xue-Mei, SpringerLink (Online service)
Springer Basel AG
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Silva, Ana Cannas, SpringerLink (Online service)
Springer Berlin Heidelberg
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Duggal, Krishan L., Sahin, Bayram, SpringerLink (Online service)
Birkhäuser Basel
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Jost, Jürgen, SpringerLink (Online service)
Springer-Verlag Berlin Heidelberg
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Toponogov, Victor A., Rovenski, Vladimir Y., SpringerLink (Online service)
Birkhäuser-Verlag
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Krupková, Olga, SpringerLink (Online service)
Springer-Verlag
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Dragomir, Sorin, Tomassini, Giuseppe, SpringerLink (Online service)
Birkhäuser Boston
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Bertram, Wolfgang, SpringerLink (Online service)
Springer-Verlag Berlin Heidelberg
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Bobenko, Alexander I., Eitner, Ulrich, SpringerLink (Online service)
Springer-Verlag Berlin Heidelberg
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