| article html file updated | 6 February 2020 20:00 CET | Update | https://www.mdpi.com/1996-1944/8/7/3806 |
| article html file updated | 6 May 2019 17:07 CEST | Update | - |
| article html file updated | 26 March 2019 05:19 CET | Update | - |
| article html file updated | 21 August 2015 14:03 CEST | Update | - |
| article html file updated | 10 August 2015 12:33 CEST | Original file | - |
| article xml file uploaded | 10 August 2015 12:33 CEST | Original file | https://www.mdpi.com/1996-1944/8/7/3806/xml |
| article pdf uploaded. | 24 June 2015 16:22 CEST | Version of Record | https://www.mdpi.com/1996-1944/8/7/3806/pdf |
