| article html file updated | 12 February 2020 23:17 CET | Update | https://www.mdpi.com/2226-471X/4/3/50 |
| article html file updated | 17 July 2019 19:28 CEST | Original file | - |
| article pdf uploaded. | 17 July 2019 13:53 CEST | Updated version of record | https://www.mdpi.com/2226-471X/4/3/50/pdf |
| article xml uploaded. | 17 July 2019 13:53 CEST | Update | https://www.mdpi.com/2226-471X/4/3/50/xml |
| article xml file uploaded | 17 July 2019 13:53 CEST | Update | - |
| article pdf uploaded. | 30 June 2019 12:15 CEST | Version of Record | https://www.mdpi.com/2226-471X/4/3/50/pdf-vor |
| article xml file uploaded | 30 June 2019 12:15 CEST | Original file | - |
