| article html file updated | 6 February 2020 22:53 CET | Update | https://www.mdpi.com/1996-1944/8/9/5306 |
| article html file updated | 6 May 2019 11:09 CEST | Update | - |
| article html file updated | 26 March 2019 10:55 CET | Original file | - |
| article xml file uploaded | 12 October 2015 07:20 CEST | Original file | https://www.mdpi.com/1996-1944/8/9/5306/xml |
| article pdf uploaded. | 17 September 2015 12:14 CEST | Updated version of record | https://www.mdpi.com/1996-1944/8/9/5306/pdf |
| article pdf uploaded. | 17 September 2015 12:13 CEST | Version of Record | - |
