| article html file updated | 26 March 2020 12:50 CET | Original file | https://www.mdpi.com/2076-0752/9/1/20 |
| article pdf uploaded. | 26 March 2020 12:48 CET | Updated version of record | https://www.mdpi.com/2076-0752/9/1/20/pdf |
| article xml uploaded. | 26 March 2020 12:48 CET | Update | https://www.mdpi.com/2076-0752/9/1/20/xml |
| article xml file uploaded | 26 March 2020 12:48 CET | Update | N/A |
| article pdf uploaded. | 11 February 2020 14:54 CET | Version of Record | https://www.mdpi.com/2076-0752/9/1/20/pdf-vor |
| article xml file uploaded | 11 February 2020 14:54 CET | Original file | N/A |
