| article html file updated | 8 February 2020 12:22 CET | Update | https://www.mdpi.com/2073-4360/9/8/321 |
| article html file updated | 26 September 2019 06:14 CEST | Update | - |
| article html file updated | 3 May 2019 09:20 CEST | Update | - |
| article html file updated | 27 March 2019 18:23 CET | Update | - |
| article html file updated | 1 September 2017 07:24 CEST | Update | - |
| article html file updated | 30 July 2017 14:31 CEST | Original file | - |
| article xml uploaded. | 30 July 2017 14:30 CEST | Original file | https://www.mdpi.com/2073-4360/9/8/321/xml |
| article pdf uploaded. | 30 July 2017 14:30 CEST | Version of Record | https://www.mdpi.com/2073-4360/9/8/321/pdf |
