| article html file updated | 7 February 2020 12:56 CET | Update | https://www.mdpi.com/1996-1944/9/8/661 |
| article html file updated | 5 May 2019 07:49 CEST | Update | - |
| article html file updated | 27 March 2019 12:51 CET | Update | - |
| article html file updated | 26 August 2016 07:03 CEST | Update | - |
| article html file updated | 5 August 2016 14:48 CEST | Original file | - |
| article xml uploaded. | 5 August 2016 14:47 CEST | Update | https://www.mdpi.com/1996-1944/9/8/661/xml |
| article pdf uploaded. | 5 August 2016 14:47 CEST | Version of Record | https://www.mdpi.com/1996-1944/9/8/661/pdf |
