| article html file updated | 9 February 2020 11:56 CET | Update | https://www.mdpi.com/2073-4344/8/4/136 |
| article html file updated | 2 October 2019 03:29 CEST | Update | - |
| article html file updated | 1 May 2019 07:17 CEST | Update | - |
| article html file updated | 17 April 2019 07:17 CEST | Update | - |
| article html file updated | 29 March 2019 11:22 CET | Update | - |
| article html file updated | 1 May 2018 14:42 CEST | Update | - |
| article html file updated | 30 March 2018 12:57 CEST | Original file | - |
| article xml uploaded. | 30 March 2018 12:56 CEST | Update | https://www.mdpi.com/2073-4344/8/4/136/xml |
| article pdf uploaded. | 30 March 2018 12:56 CEST | Version of Record | https://www.mdpi.com/2073-4344/8/4/136/pdf |
