| article html file updated | 14 February 2020 08:00 CET | Update | https://www.mdpi.com/2410-390X/3/4/60 |
| article html file updated | 6 December 2019 08:53 CET | Original file | - |
| article pdf uploaded. | 6 December 2019 08:52 CET | Updated version of record | https://www.mdpi.com/2410-390X/3/4/60/pdf |
| article xml uploaded. | 6 December 2019 08:52 CET | Update | https://www.mdpi.com/2410-390X/3/4/60/xml |
| article xml file uploaded | 6 December 2019 08:52 CET | Update | - |
| article pdf uploaded. | 8 November 2019 12:43 CET | Version of Record | https://www.mdpi.com/2410-390X/3/4/60/pdf-vor |
| article xml file uploaded | 8 November 2019 12:43 CET | Original file | - |
