| article html file updated | 6 February 2020 12:32 CET | Update | https://www.mdpi.com/2072-6694/6/4/1953 |
| article html file updated | 20 September 2019 13:22 CEST | Update | - |
| article html file updated | 7 May 2019 07:42 CEST | Update | - |
| article html file updated | 22 March 2019 01:44 CET | Update | - |
| article html file updated | 20 August 2015 21:30 CEST | Update | - |
| article html file updated | 26 December 2014 11:26 CET | Original file | - |
| article xml file uploaded | 26 December 2014 11:26 CET | Original file | https://www.mdpi.com/2072-6694/6/4/1953/xml |
| article pdf uploaded. | 29 September 2014 11:09 CEST | Version of Record | https://www.mdpi.com/2072-6694/6/4/1953/pdf |
