| article html file updated | 26 March 2020 12:32 CET | Original file | https://www.mdpi.com/2076-0752/9/1/31 |
| article pdf uploaded. | 26 March 2020 12:30 CET | Updated version of record | https://www.mdpi.com/2076-0752/9/1/31/pdf |
| article xml uploaded. | 26 March 2020 12:30 CET | Update | https://www.mdpi.com/2076-0752/9/1/31/xml |
| article xml file uploaded | 26 March 2020 12:30 CET | Update | - |
| article pdf uploaded. | 27 February 2020 10:35 CET | Version of Record | https://www.mdpi.com/2076-0752/9/1/31/pdf-vor |
| article xml file uploaded | 27 February 2020 10:35 CET | Original file | - |
