| article html file updated | 9 February 2020 03:58 CET | Update | https://www.mdpi.com/2073-4425/9/2/28 |
| article html file updated | 30 September 2019 03:19 CEST | Update | - |
| article html file updated | 2 May 2019 00:20 CEST | Update | - |
| article html file updated | 17 April 2019 22:48 CEST | Update | - |
| article html file updated | 28 March 2019 17:34 CET | Update | - |
| article html file updated | 14 March 2018 17:14 CET | Update | - |
| article html file updated | 23 January 2018 08:33 CET | Original file | - |
| article xml uploaded. | 23 January 2018 08:32 CET | Original file | https://www.mdpi.com/2073-4425/9/2/28/xml |
| article pdf uploaded. | 23 January 2018 08:32 CET | Version of Record | https://www.mdpi.com/2073-4425/9/2/28/pdf |
