| article html file updated | 7 February 2020 23:40 CET | Update | https://www.mdpi.com/1660-3397/15/2/44 |
| article html file updated | 23 September 2019 09:25 CEST | Update | - |
| article html file updated | 4 May 2019 10:44 CEST | Update | - |
| article html file updated | 2 March 2017 09:39 CET | Update | - |
| article html file updated | 17 February 2017 14:39 CET | Original file | - |
| article xml uploaded. | 17 February 2017 14:37 CET | Update | https://www.mdpi.com/1660-3397/15/2/44/xml |
| article xml uploaded. | 17 February 2017 14:37 CET | Original file | - |
| article pdf uploaded. | 17 February 2017 14:37 CET | Version of Record | https://www.mdpi.com/1660-3397/15/2/44/pdf |
