| article html file updated | 9 February 2020 06:07 CET | Update | https://www.mdpi.com/1660-3397/16/2/56 |
| article html file updated | 30 September 2019 16:17 CEST | Update | - |
| article html file updated | 1 May 2019 19:36 CEST | Update | - |
| article html file updated | 17 April 2019 18:45 CEST | Update | - |
| article html file updated | 28 March 2019 22:14 CET | Update | - |
| article html file updated | 14 March 2018 17:13 CET | Update | - |
| article html file updated | 9 February 2018 17:37 CET | Original file | - |
| article xml uploaded. | 9 February 2018 17:35 CET | Update | https://www.mdpi.com/1660-3397/16/2/56/xml |
| article xml uploaded. | 9 February 2018 17:35 CET | Original file | - |
| article pdf uploaded. | 9 February 2018 17:35 CET | Version of Record | https://www.mdpi.com/1660-3397/16/2/56/pdf |
