| article html file updated | 8 February 2020 15:53 CET | Update | https://www.mdpi.com/2073-4344/7/9/267 |
| article html file updated | 3 May 2019 02:32 CEST | Update | N/A |
| article html file updated | 26 September 2017 06:23 CEST | Update | N/A |
| article html file updated | 12 September 2017 11:43 CEST | Original file | N/A |
| article xml uploaded. | 12 September 2017 11:41 CEST | Original file | https://www.mdpi.com/2073-4344/7/9/267/xml |
| article pdf uploaded. | 12 September 2017 11:41 CEST | Updated version of record | https://www.mdpi.com/2073-4344/7/9/267/pdf |
| article pdf uploaded. | 11 September 2017 15:37 CEST | Version of Record | https://www.mdpi.com/2073-4344/7/9/267/pdf-vor |
