| article html file updated | 9 February 2020 06:38 CET | Update | https://www.mdpi.com/2075-4434/6/1/23 |
| article html file updated | 30 September 2019 19:20 CEST | Update | - |
| article html file updated | 1 May 2019 18:27 CEST | Update | - |
| article html file updated | 17 April 2019 17:45 CEST | Update | - |
| article html file updated | 28 March 2019 23:19 CET | Update | - |
| article html file updated | 27 March 2018 12:39 CEST | Update | - |
| article html file updated | 14 February 2018 08:22 CET | Original file | - |
| article xml uploaded. | 14 February 2018 08:21 CET | Original file | https://www.mdpi.com/2075-4434/6/1/23/xml |
| article pdf uploaded. | 14 February 2018 08:21 CET | Version of Record | https://www.mdpi.com/2075-4434/6/1/23/pdf |
