| article html file updated | 6 February 2020 11:54 CET | Update | https://www.mdpi.com/1996-1073/7/9/5701 |
| article html file updated | 7 May 2019 08:54 CEST | Update | N/A |
| article html file updated | 22 March 2019 00:05 CET | Update | N/A |
| article html file updated | 20 August 2015 17:01 CEST | Update | N/A |
| article html file updated | 22 October 2014 07:37 CEST | Original file | N/A |
| article xml file uploaded | 22 October 2014 07:37 CEST | Original file | https://www.mdpi.com/1996-1073/7/9/5701/xml |
| article pdf uploaded. | 1 September 2014 08:43 CEST | Version of Record | https://www.mdpi.com/1996-1073/7/9/5701/pdf |
