| article html file updated | 6 February 2020 06:50 CET | Update | https://www.mdpi.com/2072-6651/6/1/394 |
| article html file updated | 7 May 2019 19:35 CEST | Update | - |
| article html file updated | 21 March 2019 11:17 CET | Update | - |
| article html file updated | 19 August 2015 18:08 CEST | Update | - |
| article html file updated | 17 February 2014 12:43 CET | Original file | - |
| article xml file uploaded | 17 February 2014 12:43 CET | Original file | https://www.mdpi.com/2072-6651/6/1/394/xml |
| article pdf uploaded. | 21 January 2014 10:27 CET | Version of Record | https://www.mdpi.com/2072-6651/6/1/394/pdf |
