© The Author(s) (Constructivist Foundations)

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Copyright Holders: © The Author(s) (Constructivist Foundations)

Self-archiving policy

Conditions

Accepted version:

√

                  Open Access Journal

Published version:

√

        Open Access Journal

Remarks:
 The copyright remains with the author and is licensed under a Creative Commons License, http://creativecommons.org.

Verification Date:

  28.08.2014