| article html file updated | 12 February 2020 02:15 CET | Update | https://www.mdpi.com/2227-9040/7/2/18 |
| article html file updated | 17 October 2019 13:40 CEST | Update | - |
| article html file updated | 5 July 2019 22:08 CEST | Update | - |
| article html file updated | 30 April 2019 11:58 CEST | Original file | - |
| article pdf uploaded. | 30 April 2019 11:56 CEST | Updated version of record | https://www.mdpi.com/2227-9040/7/2/18/pdf |
| article xml uploaded. | 30 April 2019 11:56 CEST | Update | https://www.mdpi.com/2227-9040/7/2/18/xml |
| article xml file uploaded | 30 April 2019 11:56 CEST | Update | - |
| article pdf uploaded. | 1 April 2019 15:36 CEST | Version of Record | https://www.mdpi.com/2227-9040/7/2/18/pdf-vor |
| article xml file uploaded | 1 April 2019 15:36 CEST | Original file | - |
