| article html file updated | 7 February 2020 07:34 CET | Update | https://www.mdpi.com/1996-1944/9/4/298 |
| article html file updated | 5 May 2019 18:01 CEST | Update | - |
| article html file updated | 27 March 2019 02:31 CET | Update | - |
| article html file updated | 28 April 2016 11:12 CEST | Update | - |
| article html file updated | 20 April 2016 14:59 CEST | Original file | - |
| article xml uploaded. | 20 April 2016 14:58 CEST | Update | https://www.mdpi.com/1996-1944/9/4/298/xml |
| article pdf uploaded. | 20 April 2016 14:58 CEST | Version of Record | https://www.mdpi.com/1996-1944/9/4/298/pdf |
