| article html file updated | 5 February 2020 10:20 CET | Update | https://www.mdpi.com/1099-4300/6/1/50 |
| article html file updated | 9 May 2019 15:22 CEST | Update | - |
| article html file updated | 22 March 2019 07:50 CET | Update | - |
| article html file updated | 19 March 2019 14:26 CET | Update | - |
| article html file updated | 19 July 2017 05:49 CEST | Update | - |
| article html file updated | 19 July 2017 05:47 CEST | Update | - |
| article html file updated | 19 July 2017 05:46 CEST | Original file | - |
| article xml uploaded. | 19 July 2017 05:45 CEST | Original file | https://www.mdpi.com/1099-4300/6/1/50/xml |
