| article html file updated | 8 February 2020 15:23 CET | Update | https://www.mdpi.com/2073-4344/7/9/264 |
| article html file updated | 26 September 2019 23:13 CEST | Update | - |
| article html file updated | 3 May 2019 03:26 CEST | Update | - |
| article html file updated | 26 September 2017 06:22 CEST | Update | - |
| article html file updated | 5 September 2017 15:16 CEST | Original file | - |
| article xml uploaded. | 5 September 2017 15:15 CEST | Original file | https://www.mdpi.com/2073-4344/7/9/264/xml |
| article pdf uploaded. | 5 September 2017 15:15 CEST | Version of Record | https://www.mdpi.com/2073-4344/7/9/264/pdf |
