| article html file updated | 6 February 2020 17:30 CET | Update | https://www.mdpi.com/2072-6694/7/2/631 |
| article html file updated | 6 May 2019 22:16 CEST | Update | - |
| article html file updated | 26 March 2019 00:23 CET | Update | - |
| article html file updated | 21 August 2015 10:14 CEST | Update | - |
| article html file updated | 7 July 2015 04:43 CEST | Original file | - |
| article xml file uploaded | 7 July 2015 04:43 CEST | Original file | https://www.mdpi.com/2072-6694/7/2/631/xml |
| article pdf uploaded. | 10 April 2015 11:01 CEST | Version of Record | https://www.mdpi.com/2072-6694/7/2/631/pdf |
