| article html file updated | 5 February 2020 13:34 CET | Update | https://www.mdpi.com/2073-8994/2/1/98 |
| article html file updated | 18 September 2019 20:59 CEST | Update | - |
| article html file updated | 9 May 2019 08:20 CEST | Update | - |
| article html file updated | 19 March 2019 22:11 CET | Update | - |
| article html file updated | 3 January 2019 10:49 CET | Original file | - |
| article xml uploaded. | 3 January 2019 10:48 CET | Original file | https://www.mdpi.com/2073-8994/2/1/98/xml |
