| article html file updated | 9 February 2020 13:48 CET | Update | https://www.mdpi.com/2073-4360/10/4/438 |
| article html file updated | 2 October 2019 14:53 CEST | Update | - |
| article html file updated | 1 May 2019 03:31 CEST | Update | - |
| article html file updated | 17 April 2019 03:54 CEST | Update | - |
| article html file updated | 29 March 2019 15:38 CET | Update | - |
| article html file updated | 1 May 2018 14:09 CEST | Update | - |
| article html file updated | 14 April 2018 09:44 CEST | Original file | - |
| article xml uploaded. | 14 April 2018 09:42 CEST | Update | https://www.mdpi.com/2073-4360/10/4/438/xml |
| article pdf uploaded. | 14 April 2018 09:42 CEST | Version of Record | https://www.mdpi.com/2073-4360/10/4/438/pdf |
