| article html file updated | 20 June 2020 10:43 CEST | Original file | https://www.mdpi.com/2077-1312/8/6/452 |
| article pdf uploaded. | 20 June 2020 10:40 CEST | Version of Record | https://www.mdpi.com/2077-1312/8/6/452/pdf |
| article xml uploaded. | 20 June 2020 10:40 CEST | Update | https://www.mdpi.com/2077-1312/8/6/452/xml |
| article xml file uploaded | 20 June 2020 10:40 CEST | Original file | N/A |
