| article html file updated | 10 November 2020 08:16 CET | Original file | https://www.mdpi.com/2311-5521/5/4/204 |
| article pdf uploaded. | 10 November 2020 08:15 CET | Version of Record | https://www.mdpi.com/2311-5521/5/4/204/pdf |
| article xml uploaded. | 10 November 2020 08:15 CET | Update | https://www.mdpi.com/2311-5521/5/4/204/xml |
| article xml file uploaded | 10 November 2020 08:15 CET | Original file | - |
