| article html file updated | 7 February 2020 06:45 CET | Update | https://www.mdpi.com/2075-5309/6/2/14 |
| article html file updated | 21 September 2019 14:24 CEST | Update | - |
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| article html file updated | 27 March 2019 00:53 CET | Update | - |
| article html file updated | 1 July 2016 10:12 CEST | Update | - |
| article html file updated | 1 April 2016 10:47 CEST | Original file | - |
| article xml uploaded. | 1 April 2016 10:46 CEST | Original file | https://www.mdpi.com/2075-5309/6/2/14/xml |
| article pdf uploaded. | 1 April 2016 10:46 CEST | Version of Record | https://www.mdpi.com/2075-5309/6/2/14/pdf |
