| article html file updated | 9 February 2020 06:37 CET | Update | https://www.mdpi.com/2077-1444/9/2/59 |
| article html file updated | 1 May 2019 18:29 CEST | Update | - |
| article html file updated | 17 April 2019 17:47 CEST | Update | - |
| article html file updated | 28 March 2019 23:17 CET | Update | - |
| article html file updated | 14 March 2018 15:13 CET | Update | - |
| article html file updated | 13 February 2018 20:00 CET | Original file | - |
| article xml uploaded. | 13 February 2018 19:59 CET | Original file | https://www.mdpi.com/2077-1444/9/2/59/xml |
| article pdf uploaded. | 13 February 2018 19:59 CET | Version of Record | https://www.mdpi.com/2077-1444/9/2/59/pdf |
