| article html file updated | 8 February 2020 15:45 CET | Update | https://www.mdpi.com/2073-4425/8/9/224 |
| article html file updated | 27 September 2019 01:04 CEST | Update | - |
| article html file updated | 3 May 2019 02:48 CEST | Update | - |
| article html file updated | 30 September 2017 10:30 CEST | Original file | - |
| article xml uploaded. | 12 September 2017 11:46 CEST | Update | https://www.mdpi.com/2073-4425/8/9/224/xml |
| article xml uploaded. | 12 September 2017 11:46 CEST | Original file | - |
| article pdf uploaded. | 12 September 2017 11:46 CEST | Updated version of record | https://www.mdpi.com/2073-4425/8/9/224/pdf |
| article pdf uploaded. | 8 September 2017 17:30 CEST | Version of Record | https://www.mdpi.com/2073-4425/8/9/224/pdf-vor |
