| article html file updated | 8 February 2020 11:54 CET | Update | https://www.mdpi.com/2073-4441/9/8/556 |
| article html file updated | 26 September 2019 03:34 CEST | Update | - |
| article html file updated | 3 May 2019 10:33 CEST | Update | - |
| article html file updated | 27 March 2019 17:29 CET | Update | - |
| article html file updated | 1 September 2017 08:11 CEST | Update | - |
| article html file updated | 25 July 2017 16:30 CEST | Original file | - |
| article xml uploaded. | 25 July 2017 16:29 CEST | Original file | https://www.mdpi.com/2073-4441/9/8/556/xml |
| article pdf uploaded. | 25 July 2017 16:29 CEST | Updated version of record | https://www.mdpi.com/2073-4441/9/8/556/pdf |
