| article html file updated | 5 February 2020 14:08 CET | Update | https://www.mdpi.com/2072-4292/2/4/990 |
| article html file updated | 9 May 2019 07:13 CEST | Update | - |
| article html file updated | 19 March 2019 23:31 CET | Update | - |
| article html file updated | 18 July 2017 10:54 CEST | Update | - |
| article html file updated | 18 July 2017 10:52 CEST | Update | - |
| article html file updated | 18 July 2017 10:51 CEST | Original file | - |
| article xml uploaded. | 18 July 2017 10:50 CEST | Original file | https://www.mdpi.com/2072-4292/2/4/990/xml |
