| article html file updated | 6 February 2020 22:51 CET | Update | https://www.mdpi.com/1996-1944/8/9/5299 |
| article html file updated | 6 May 2019 11:15 CEST | Update | N/A |
| article html file updated | 26 March 2019 10:50 CET | Original file | N/A |
| article xml file uploaded | 12 October 2015 07:20 CEST | Original file | https://www.mdpi.com/1996-1944/8/9/5299/xml |
| article pdf uploaded. | 16 September 2015 14:08 CEST | Version of Record | https://www.mdpi.com/1996-1944/8/9/5299/pdf |
