| article html file updated | 8 February 2020 21:58 CET | Update | https://www.mdpi.com/2073-4360/9/12/631 |
| article html file updated | 28 September 2019 16:35 CEST | Update | - |
| article html file updated | 2 May 2019 13:14 CEST | Update | - |
| article html file updated | 18 April 2019 10:53 CEST | Update | - |
| article html file updated | 2 January 2018 14:26 CET | Update | - |
| article html file updated | 23 November 2017 09:55 CET | Original file | - |
| article xml uploaded. | 23 November 2017 09:54 CET | Original file | https://www.mdpi.com/2073-4360/9/12/631/xml |
| article pdf uploaded. | 23 November 2017 09:54 CET | Version of Record | https://www.mdpi.com/2073-4360/9/12/631/pdf |
