| article html file updated | 9 February 2020 09:14 CET | Update | https://www.mdpi.com/2076-2607/6/1/23 |
| article html file updated | 1 October 2019 10:18 CEST | Update | - |
| article html file updated | 1 May 2019 13:02 CEST | Update | - |
| article html file updated | 17 April 2019 12:43 CEST | Update | - |
| article html file updated | 29 March 2019 05:14 CET | Update | - |
| article html file updated | 27 March 2018 14:49 CEST | Update | - |
| article html file updated | 9 March 2018 09:41 CET | Original file | - |
| article xml uploaded. | 9 March 2018 09:40 CET | Original file | https://www.mdpi.com/2076-2607/6/1/23/xml |
| article pdf uploaded. | 9 March 2018 09:40 CET | Version of Record | https://www.mdpi.com/2076-2607/6/1/23/pdf |
