| article html file updated | 7 February 2020 23:54 CET | Update | https://www.mdpi.com/2072-6651/9/2/72 |
| article html file updated | 23 September 2019 10:45 CEST | Update | - |
| article html file updated | 4 May 2019 10:14 CEST | Update | - |
| article html file updated | 1 March 2017 03:49 CET | Update | - |
| article html file updated | 21 February 2017 11:40 CET | Original file | - |
| article xml uploaded. | 21 February 2017 11:38 CET | Original file | https://www.mdpi.com/2072-6651/9/2/72/xml |
| article pdf uploaded. | 21 February 2017 11:38 CET | Version of Record | https://www.mdpi.com/2072-6651/9/2/72/pdf |
