| article html file updated | 8 February 2020 17:57 CET | Update | https://www.mdpi.com/2073-4360/9/10/491 |
| article html file updated | 27 September 2019 14:31 CEST | Update | - |
| article html file updated | 2 May 2019 22:25 CEST | Update | - |
| article html file updated | 1 November 2017 02:37 CET | Update | - |
| article html file updated | 11 October 2017 04:55 CEST | Original file | - |
| article xml uploaded. | 11 October 2017 04:54 CEST | Original file | https://www.mdpi.com/2073-4360/9/10/491/xml |
| article pdf uploaded. | 11 October 2017 04:54 CEST | Updated version of record | https://www.mdpi.com/2073-4360/9/10/491/pdf |
| article pdf uploaded. | 8 October 2017 11:08 CEST | Version of Record | https://www.mdpi.com/2073-4360/9/10/491/pdf-vor |
