| article html file updated | 7 February 2020 21:37 CET | Update | https://www.mdpi.com/2072-6643/9/1/71 |
| article html file updated | 22 September 2019 22:14 CEST | Update | - |
| article html file updated | 4 May 2019 14:51 CEST | Update | - |
| article html file updated | 7 February 2017 12:30 CET | Update | - |
| article html file updated | 17 January 2017 10:42 CET | Original file | - |
| article xml uploaded. | 17 January 2017 10:41 CET | Update | https://www.mdpi.com/2072-6643/9/1/71/xml |
| article xml uploaded. | 17 January 2017 10:41 CET | Original file | - |
| article pdf uploaded. | 17 January 2017 10:41 CET | Version of Record | https://www.mdpi.com/2072-6643/9/1/71/pdf |
