| article html file updated | 6 February 2020 11:06 CET | Update | https://www.mdpi.com/1996-1944/7/8/5554 |
| article html file updated | 7 May 2019 10:48 CEST | Update | - |
| article html file updated | 21 March 2019 22:03 CET | Update | - |
| article html file updated | 20 August 2015 14:10 CEST | Update | - |
| article html file updated | 5 September 2014 12:23 CEST | Original file | - |
| article xml file uploaded | 5 September 2014 12:23 CEST | Original file | https://www.mdpi.com/1996-1944/7/8/5554/xml |
| article pdf uploaded. | 31 July 2014 08:28 CEST | Version of Record | https://www.mdpi.com/1996-1944/7/8/5554/pdf |
