| article html file updated | 6 February 2020 10:05 CET | Update | https://www.mdpi.com/1996-1944/7/6/4723 |
| article html file updated | 7 May 2019 12:51 CEST | Update | N/A |
| article html file updated | 21 March 2019 19:13 CET | Update | N/A |
| article html file updated | 20 August 2015 10:27 CEST | Update | N/A |
| article html file updated | 18 July 2014 04:28 CEST | Original file | N/A |
| article xml file uploaded | 18 July 2014 04:28 CEST | Original file | https://www.mdpi.com/1996-1944/7/6/4723/xml |
| article pdf uploaded. | 19 June 2014 13:37 CEST | Version of Record | https://www.mdpi.com/1996-1944/7/6/4723/pdf |
