| article html file updated | 6 February 2020 03:35 CET | Update | https://www.mdpi.com/2304-8158/2/3/364 |
| article html file updated | 8 May 2019 02:08 CEST | Update | - |
| article html file updated | 21 March 2019 02:23 CET | Update | - |
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| article html file updated | 17 June 2015 11:59 CEST | Original file | - |
| article pdf uploaded. | 2 August 2013 14:35 CEST | Version of Record | https://www.mdpi.com/2304-8158/2/3/364/pdf |
