| article html file updated | 7 February 2020 08:23 CET | Update | https://www.mdpi.com/2075-163X/6/2/43 |
| article html file updated | 5 May 2019 16:23 CEST | Update | - |
| article html file updated | 27 March 2019 04:09 CET | Update | - |
| article html file updated | 4 July 2016 06:24 CEST | Update | - |
| article html file updated | 9 May 2016 12:19 CEST | Original file | - |
| article xml uploaded. | 9 May 2016 12:18 CEST | Original file | https://www.mdpi.com/2075-163X/6/2/43/xml |
| article pdf uploaded. | 9 May 2016 12:18 CEST | Version of Record | https://www.mdpi.com/2075-163X/6/2/43/pdf |
