| article html file updated | 9 February 2020 12:22 CET | Update | https://www.mdpi.com/2075-4701/8/4/234 |
| article html file updated | 1 May 2019 06:26 CEST | Update | - |
| article html file updated | 17 April 2019 06:30 CEST | Update | - |
| article html file updated | 29 March 2019 12:20 CET | Update | - |
| article html file updated | 1 May 2018 07:36 CEST | Update | - |
| article html file updated | 1 May 2018 07:35 CEST | Update | - |
| article html file updated | 3 April 2018 18:47 CEST | Original file | - |
| article xml uploaded. | 3 April 2018 18:45 CEST | Update | https://www.mdpi.com/2075-4701/8/4/234/xml |
| article pdf uploaded. | 3 April 2018 18:45 CEST | Version of Record | https://www.mdpi.com/2075-4701/8/4/234/pdf |
