| article html file updated | 22 June 2020 04:27 CEST | Update | https://www.mdpi.com/2076-0752/9/2/66 |
| article pdf uploaded. | 22 June 2020 04:25 CEST | Updated version of record | https://www.mdpi.com/2076-0752/9/2/66/pdf |
| article xml uploaded. | 22 June 2020 04:25 CEST | Update | https://www.mdpi.com/2076-0752/9/2/66/xml |
| article xml file uploaded | 22 June 2020 04:25 CEST | Update | - |
| article html file updated | 20 June 2020 10:38 CEST | Original file | - |
| article pdf uploaded. | 20 June 2020 10:36 CEST | Updated version of record | https://www.mdpi.com/2076-0752/9/2/66/pdf-vor |
| article xml file uploaded | 20 June 2020 10:36 CEST | Original file | - |
| article pdf uploaded. | 29 May 2020 11:40 CEST | Version of Record | https://www.mdpi.com/2076-0752/9/2/66/pdf-vor |
