| article html file updated | 9 February 2020 04:27 CET | Update | https://www.mdpi.com/1660-3397/16/2/44 |
| article html file updated | 30 September 2019 06:07 CEST | Update | - |
| article html file updated | 1 May 2019 23:19 CEST | Update | - |
| article html file updated | 17 April 2019 21:56 CEST | Update | - |
| article html file updated | 28 March 2019 18:35 CET | Update | - |
| article html file updated | 14 March 2018 17:09 CET | Update | - |
| article html file updated | 26 January 2018 16:26 CET | Original file | - |
| article xml uploaded. | 26 January 2018 16:25 CET | Original file | https://www.mdpi.com/1660-3397/16/2/44/xml |
| article pdf uploaded. | 26 January 2018 16:25 CET | Version of Record | https://www.mdpi.com/1660-3397/16/2/44/pdf |
