| article html file updated | 14 February 2020 04:57 CET | Update | https://www.mdpi.com/2077-0375/9/11/138 |
| article html file updated | 27 November 2019 17:39 CET | Update | - |
| article html file updated | 29 October 2019 22:56 CET | Original file | - |
| article pdf uploaded. | 29 October 2019 13:46 CET | Version of Record | https://www.mdpi.com/2077-0375/9/11/138/pdf |
| article xml uploaded. | 29 October 2019 13:46 CET | Update | https://www.mdpi.com/2077-0375/9/11/138/xml |
| article xml file uploaded | 29 October 2019 13:46 CET | Original file | - |
