| article html file updated | 7 February 2020 12:54 CET | Update | https://www.mdpi.com/1996-1944/9/8/660 |
| article html file updated | 5 May 2019 07:51 CEST | Update | - |
| article html file updated | 27 March 2019 12:48 CET | Update | - |
| article html file updated | 26 August 2016 07:02 CEST | Update | - |
| article html file updated | 5 August 2016 12:16 CEST | Original file | - |
| article xml uploaded. | 5 August 2016 12:15 CEST | Update | https://www.mdpi.com/1996-1944/9/8/660/xml |
| article pdf uploaded. | 5 August 2016 12:15 CEST | Version of Record | https://www.mdpi.com/1996-1944/9/8/660/pdf |
