| article html file updated | 6 February 2020 10:55 CET | Update | https://www.mdpi.com/2072-6651/6/7/2149 |
| article html file updated | 7 May 2019 11:12 CEST | Update | - |
| article html file updated | 21 March 2019 21:29 CET | Update | - |
| article html file updated | 20 August 2015 13:26 CEST | Update | - |
| article html file updated | 29 July 2014 11:03 CEST | Original file | - |
| article xml file uploaded | 29 July 2014 11:02 CEST | Original file | https://www.mdpi.com/2072-6651/6/7/2149/xml |
| article pdf uploaded. | 22 July 2014 13:47 CEST | Version of Record | https://www.mdpi.com/2072-6651/6/7/2149/pdf |
