| article html file updated | 7 February 2020 00:21 CET | Update | https://www.mdpi.com/1996-1944/8/11/5380 |
| article html file updated | 6 May 2019 08:11 CEST | Update | - |
| article html file updated | 26 March 2019 13:37 CET | Original file | - |
| article xml file uploaded | 6 November 2015 11:06 CET | Original file | https://www.mdpi.com/1996-1944/8/11/5380/xml |
| article pdf uploaded. | 6 November 2015 10:31 CET | Updated version of record | https://www.mdpi.com/1996-1944/8/11/5380/pdf |
| article pdf uploaded. | 29 October 2015 09:08 CET | Version of Record | https://www.mdpi.com/1996-1944/8/11/5380/pdf-vor |
