| article html file updated | 7 February 2020 06:44 CET | Update | https://www.mdpi.com/2072-6694/8/4/43 |
| article html file updated | 5 May 2019 19:47 CEST | Update | - |
| article html file updated | 27 March 2019 00:52 CET | Update | - |
| article html file updated | 27 April 2016 09:25 CEST | Update | - |
| article html file updated | 1 April 2016 15:15 CEST | Original file | - |
| article xml uploaded. | 1 April 2016 15:13 CEST | Original file | https://www.mdpi.com/2072-6694/8/4/43/xml |
| article pdf uploaded. | 1 April 2016 15:13 CEST | Version of Record | https://www.mdpi.com/2072-6694/8/4/43/pdf |
