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Submitted on: 20 July 2012.
Revised on: 17 August 2012.
Accepted on: 24 August 2012.
NTM
Submitted on: 01 June 2015.
Revised on: 17 June 2015.
Accepted on: 13 July 2015.
NTM---SPRINGER INT PUBL AG
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Submitted on: 11 April 2002.
Revised on: 26 April 2002.
Accepted on: 07 May 2002.
NTM---SPRINGER INT PUBL AG
Submitted on: 23 January 2005.
Revised on: 05 March 2005.
Accepted on: 22 March 2005.
NTM
Submitted on: 14 November 2009.
Revised on: 05 December 2009.
Accepted on: 13 December 2009.
NTM
Submitted on: 24 September 2012.
Revised on: 01 October 2012.
Accepted on: 19 October 2012.
NTM---SPRINGER INT PUBL AG
Submitted on: 13 July 2006.
Revised on: 11 August 2006.
Accepted on: 03 September 2006.
NTM