| article html file updated | 7 February 2020 06:43 CET | Update | https://www.mdpi.com/2072-6651/8/4/99 |
| article html file updated | 5 May 2019 19:47 CEST | Update | - |
| article html file updated | 27 March 2019 00:51 CET | Update | - |
| article html file updated | 28 April 2016 10:27 CEST | Update | - |
| article html file updated | 1 April 2016 13:48 CEST | Original file | - |
| article xml uploaded. | 1 April 2016 13:47 CEST | Original file | https://www.mdpi.com/2072-6651/8/4/99/xml |
| article pdf uploaded. | 1 April 2016 13:47 CEST | Version of Record | https://www.mdpi.com/2072-6651/8/4/99/pdf |
