| article html file updated | 9 February 2020 11:41 CET | Update | https://www.mdpi.com/2073-4344/8/4/131 |
| article html file updated | 2 October 2019 01:51 CEST | Update | - |
| article html file updated | 1 May 2019 07:48 CEST | Update | - |
| article html file updated | 17 April 2019 07:46 CEST | Update | - |
| article html file updated | 29 March 2019 10:47 CET | Update | - |
| article html file updated | 1 May 2018 14:41 CEST | Update | - |
| article html file updated | 28 March 2018 17:49 CEST | Original file | - |
| article xml uploaded. | 28 March 2018 17:48 CEST | Original file | https://www.mdpi.com/2073-4344/8/4/131/xml |
| article pdf uploaded. | 28 March 2018 17:48 CEST | Version of Record | https://www.mdpi.com/2073-4344/8/4/131/pdf |
