| article html file updated | 8 February 2020 15:06 CET | Update | https://www.mdpi.com/2073-4344/7/9/260 |
| article html file updated | 26 September 2019 21:37 CEST | Update | - |
| article html file updated | 3 May 2019 03:58 CEST | Update | - |
| article html file updated | 26 September 2017 06:21 CEST | Update | - |
| article html file updated | 1 September 2017 16:06 CEST | Original file | - |
| article xml uploaded. | 1 September 2017 16:05 CEST | Update | https://www.mdpi.com/2073-4344/7/9/260/xml |
| article xml uploaded. | 1 September 2017 16:05 CEST | Original file | - |
| article pdf uploaded. | 1 September 2017 16:05 CEST | Version of Record | https://www.mdpi.com/2073-4344/7/9/260/pdf |
