| article html file updated | 7 February 2020 21:38 CET | Update | https://www.mdpi.com/2075-163X/7/1/8 |
| article html file updated | 22 September 2019 22:20 CEST | Update | - |
| article html file updated | 4 May 2019 14:49 CEST | Update | - |
| article html file updated | 7 February 2017 10:28 CET | Update | - |
| article html file updated | 17 January 2017 11:58 CET | Original file | - |
| article xml uploaded. | 17 January 2017 11:57 CET | Original file | https://www.mdpi.com/2075-163X/7/1/8/xml |
| article pdf uploaded. | 17 January 2017 11:57 CET | Version of Record | https://www.mdpi.com/2075-163X/7/1/8/pdf |
