| article html file updated | 7 February 2020 07:18 CET | Update | https://www.mdpi.com/1996-1944/9/4/289 |
| article html file updated | 5 May 2019 18:33 CEST | Update | - |
| article html file updated | 27 March 2019 01:58 CET | Update | - |
| article html file updated | 28 April 2016 11:07 CEST | Update | - |
| article html file updated | 15 April 2016 09:39 CEST | Original file | - |
| article xml uploaded. | 15 April 2016 09:37 CEST | Original file | https://www.mdpi.com/1996-1944/9/4/289/xml |
| article pdf uploaded. | 15 April 2016 09:37 CEST | Version of Record | https://www.mdpi.com/1996-1944/9/4/289/pdf |
