| article html file updated | 16 June 2020 09:53 CEST | Original file | https://www.mdpi.com/2304-6775/8/2/31 |
| article pdf uploaded. | 16 June 2020 09:51 CEST | Updated version of record | https://www.mdpi.com/2304-6775/8/2/31/pdf |
| article xml uploaded. | 16 June 2020 09:51 CEST | Update | https://www.mdpi.com/2304-6775/8/2/31/xml |
| article xml file uploaded | 16 June 2020 09:51 CEST | Original file | - |
| article pdf uploaded. | 4 June 2020 15:05 CEST | Updated version of record | https://www.mdpi.com/2304-6775/8/2/31/pdf-vor |
| article pdf uploaded. | 4 June 2020 15:05 CEST | Version of Record | https://www.mdpi.com/2304-6775/8/2/31/pdf-vor |
