| article html file updated | 9 February 2020 04:01 CET | Update | https://www.mdpi.com/1660-3397/16/2/39 |
| article html file updated | 30 September 2019 03:33 CEST | Update | - |
| article html file updated | 2 May 2019 00:13 CEST | Update | - |
| article html file updated | 17 April 2019 22:43 CEST | Update | - |
| article html file updated | 28 March 2019 17:40 CET | Update | - |
| article html file updated | 14 March 2018 17:08 CET | Update | - |
| article html file updated | 23 January 2018 18:19 CET | Original file | - |
| article xml uploaded. | 23 January 2018 18:17 CET | Original file | https://www.mdpi.com/1660-3397/16/2/39/xml |
| article pdf uploaded. | 23 January 2018 18:17 CET | Version of Record | https://www.mdpi.com/1660-3397/16/2/39/pdf |
