| article html file updated | 27 March 2020 05:01 CET | Original file | https://www.mdpi.com/2076-0752/9/1/30 |
| article pdf uploaded. | 27 March 2020 05:00 CET | Updated version of record | https://www.mdpi.com/2076-0752/9/1/30/pdf |
| article xml uploaded. | 27 March 2020 05:00 CET | Update | https://www.mdpi.com/2076-0752/9/1/30/xml |
| article xml file uploaded | 27 March 2020 05:00 CET | Update | - |
| article pdf uploaded. | 26 February 2020 12:23 CET | Version of Record | https://www.mdpi.com/2076-0752/9/1/30/pdf-vor |
| article xml file uploaded | 26 February 2020 12:23 CET | Original file | - |
