| article html file updated | 6 February 2020 11:48 CET | Update | https://www.mdpi.com/1996-1073/7/9/5601 |
| article html file updated | 7 May 2019 09:05 CEST | Update | N/A |
| article html file updated | 21 March 2019 23:51 CET | Update | N/A |
| article html file updated | 20 August 2015 16:38 CEST | Update | N/A |
| article html file updated | 28 October 2014 03:56 CET | Original file | N/A |
| article xml file uploaded | 28 October 2014 03:56 CET | Original file | https://www.mdpi.com/1996-1073/7/9/5601/xml |
| article pdf uploaded. | 27 August 2014 09:22 CEST | Version of Record | https://www.mdpi.com/1996-1073/7/9/5601/pdf |
