| article html file updated | 9 February 2020 11:51 CET | Update | https://www.mdpi.com/2073-4344/8/4/134 |
| article html file updated | 2 October 2019 03:01 CEST | Update | - |
| article html file updated | 1 May 2019 07:26 CEST | Update | - |
| article html file updated | 17 April 2019 07:25 CEST | Update | - |
| article html file updated | 29 March 2019 11:12 CET | Update | - |
| article html file updated | 1 May 2018 14:41 CEST | Update | - |
| article html file updated | 30 March 2018 03:35 CEST | Original file | - |
| article xml uploaded. | 30 March 2018 03:34 CEST | Original file | https://www.mdpi.com/2073-4344/8/4/134/xml |
| article pdf uploaded. | 30 March 2018 03:34 CEST | Version of Record | https://www.mdpi.com/2073-4344/8/4/134/pdf |
