| article html file updated | 27 March 2020 10:29 CET | Original file | https://www.mdpi.com/2226-471X/5/1/6 |
| article pdf uploaded. | 27 March 2020 10:27 CET | Updated version of record | https://www.mdpi.com/2226-471X/5/1/6/pdf |
| article xml uploaded. | 27 March 2020 10:27 CET | Update | https://www.mdpi.com/2226-471X/5/1/6/xml |
| article xml file uploaded | 27 March 2020 10:27 CET | Update | - |
| article pdf uploaded. | 22 January 2020 15:12 CET | Version of Record | https://www.mdpi.com/2226-471X/5/1/6/pdf-vor |
| article xml file uploaded | 22 January 2020 15:12 CET | Original file | - |
