| article html file updated | 7 February 2020 07:12 CET | Update | https://www.mdpi.com/1996-1944/9/4/283 |
| article html file updated | 5 May 2019 18:47 CEST | Update | - |
| article html file updated | 27 March 2019 01:45 CET | Update | - |
| article html file updated | 28 April 2016 11:05 CEST | Update | - |
| article html file updated | 13 April 2016 11:16 CEST | Original file | - |
| article xml uploaded. | 13 April 2016 11:14 CEST | Original file | https://www.mdpi.com/1996-1944/9/4/283/xml |
| article pdf uploaded. | 13 April 2016 11:14 CEST | Version of Record | https://www.mdpi.com/1996-1944/9/4/283/pdf |
