| article html file updated | 12 February 2020 02:47 CET | Update | https://www.mdpi.com/2226-471X/4/2/22 |
| article html file updated | 29 April 2019 14:04 CEST | Original file | - |
| article pdf uploaded. | 29 April 2019 14:03 CEST | Updated version of record | https://www.mdpi.com/2226-471X/4/2/22/pdf |
| article xml uploaded. | 29 April 2019 14:03 CEST | Update | https://www.mdpi.com/2226-471X/4/2/22/xml |
| article xml file uploaded | 29 April 2019 14:03 CEST | Update | - |
| article pdf uploaded. | 3 April 2019 13:10 CEST | Version of Record | https://www.mdpi.com/2226-471X/4/2/22/pdf-vor |
| article xml file uploaded | 3 April 2019 13:10 CEST | Original file | - |
