| article html file updated | 6 February 2020 17:39 CET | Update | https://www.mdpi.com/2072-6694/7/2/670 |
| article html file updated | 6 May 2019 21:58 CEST | Update | - |
| article html file updated | 26 March 2019 00:38 CET | Update | - |
| article html file updated | 21 August 2015 10:26 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/2072-6694/7/2/670/xml |
| article pdf uploaded. | 15 April 2015 10:08 CEST | Version of Record | https://www.mdpi.com/2072-6694/7/2/670/pdf |
