| article html file updated | 9 February 2020 03:54 CET | Update | https://www.mdpi.com/1660-3397/16/1/33 |
| article html file updated | 30 September 2019 02:58 CEST | Update | - |
| article html file updated | 2 May 2019 00:30 CEST | Update | - |
| article html file updated | 17 April 2019 22:55 CEST | Update | - |
| article html file updated | 28 March 2019 17:25 CET | Update | - |
| article html file updated | 1 February 2018 08:10 CET | Update | - |
| article html file updated | 22 January 2018 18:14 CET | Original file | - |
| article xml uploaded. | 22 January 2018 18:13 CET | Original file | https://www.mdpi.com/1660-3397/16/1/33/xml |
| article pdf uploaded. | 22 January 2018 18:13 CET | Version of Record | https://www.mdpi.com/1660-3397/16/1/33/pdf |
