| article html file updated | 14 February 2020 13:56 CET | Update | https://www.mdpi.com/2227-9040/7/4/60 |
| article html file updated | 31 December 2019 00:06 CET | Update | - |
| article html file updated | 17 December 2019 10:37 CET | Original file | - |
| article pdf uploaded. | 17 December 2019 10:35 CET | Updated version of record | https://www.mdpi.com/2227-9040/7/4/60/pdf |
| article xml uploaded. | 17 December 2019 10:35 CET | Update | https://www.mdpi.com/2227-9040/7/4/60/xml |
| article xml file uploaded | 17 December 2019 10:35 CET | Update | - |
| article pdf uploaded. | 28 November 2019 11:34 CET | Version of Record | https://www.mdpi.com/2227-9040/7/4/60/pdf-vor |
| article xml file uploaded | 28 November 2019 11:34 CET | Original file | - |
