| article html file updated | 6 February 2020 23:06 CET | Update | https://www.mdpi.com/1996-1944/8/9/5320 |
| article html file updated | 6 May 2019 10:42 CEST | Update | N/A |
| article html file updated | 26 March 2019 11:20 CET | Original file | N/A |
| article xml file uploaded | 12 October 2015 07:20 CEST | Original file | https://www.mdpi.com/1996-1944/8/9/5320/xml |
| article pdf uploaded. | 22 September 2015 15:36 CEST | Version of Record | https://www.mdpi.com/1996-1944/8/9/5320/pdf |
