| article html file updated | 8 February 2020 09:31 CET | Update | https://www.mdpi.com/2073-8994/9/7/99 |
| article html file updated | 3 May 2019 15:07 CEST | Update | - |
| article html file updated | 31 July 2017 09:59 CEST | Update | - |
| article html file updated | 4 July 2017 13:56 CEST | Update | - |
| article xml uploaded. | 4 July 2017 13:54 CEST | Update | https://www.mdpi.com/2073-8994/9/7/99/xml |
| article pdf uploaded. | 4 July 2017 13:54 CEST | Updated version of record | https://www.mdpi.com/2073-8994/9/7/99/pdf |
| article html file updated | 28 June 2017 15:51 CEST | Original file | - |
| article pdf uploaded. | 28 June 2017 15:50 CEST | Version of Record | https://www.mdpi.com/2073-8994/9/7/99/pdf-vor |
