| article html file updated | 8 February 2020 10:06 CET | Update | https://www.mdpi.com/2077-1444/8/7/121 |
| article html file updated | 25 September 2019 18:13 CEST | Update | - |
| article html file updated | 3 May 2019 14:02 CEST | Update | - |
| article html file updated | 31 July 2017 08:57 CEST | Update | - |
| article html file updated | 4 July 2017 14:56 CEST | Original file | - |
| article xml uploaded. | 4 July 2017 14:54 CEST | Original file | https://www.mdpi.com/2077-1444/8/7/121/xml |
| article pdf uploaded. | 4 July 2017 14:54 CEST | Version of Record | https://www.mdpi.com/2077-1444/8/7/121/pdf |
