| article html file updated | 8 February 2020 15:14 CET | Update | https://www.mdpi.com/2073-4352/7/9/270 |
| article html file updated | 26 September 2019 22:24 CEST | Update | - |
| article html file updated | 3 May 2019 03:44 CEST | Update | - |
| article html file updated | 30 September 2017 08:43 CEST | Update | - |
| article html file updated | 5 September 2017 16:08 CEST | Original file | - |
| article xml uploaded. | 5 September 2017 16:07 CEST | Original file | https://www.mdpi.com/2073-4352/7/9/270/xml |
| article pdf uploaded. | 5 September 2017 16:07 CEST | Updated version of record | https://www.mdpi.com/2073-4352/7/9/270/pdf |
| article pdf uploaded. | 4 September 2017 11:51 CEST | Version of Record | https://www.mdpi.com/2073-4352/7/9/270/pdf-vor |
