| article html file updated | 14 February 2020 12:32 CET | Update | https://www.mdpi.com/2077-0375/9/12/156 |
| article html file updated | 31 December 2019 21:57 CET | Update | - |
| article html file updated | 16 December 2019 04:30 CET | Original file | - |
| article pdf uploaded. | 16 December 2019 04:29 CET | Updated version of record | https://www.mdpi.com/2077-0375/9/12/156/pdf |
| article xml uploaded. | 16 December 2019 04:29 CET | Update | https://www.mdpi.com/2077-0375/9/12/156/xml |
| article xml file uploaded | 16 December 2019 04:29 CET | Update | - |
| article pdf uploaded. | 23 November 2019 11:02 CET | Version of Record | https://www.mdpi.com/2077-0375/9/12/156/pdf-vor |
| article xml file uploaded | 23 November 2019 11:02 CET | Original file | - |
