| article html file updated | 12 February 2020 02:52 CET | Update | https://www.mdpi.com/2226-4310/6/4/40 |
| article html file updated | 17 October 2019 17:30 CEST | Update | - |
| article html file updated | 8 May 2019 19:05 CEST | Update | - |
| article html file updated | 25 April 2019 17:10 CEST | Update | - |
| article html file updated | 17 April 2019 12:45 CEST | Original file | - |
| article pdf uploaded. | 17 April 2019 12:44 CEST | Updated version of record | https://www.mdpi.com/2226-4310/6/4/40/pdf |
| article xml uploaded. | 17 April 2019 12:44 CEST | Update | https://www.mdpi.com/2226-4310/6/4/40/xml |
| article xml file uploaded | 17 April 2019 12:44 CEST | Update | - |
| article pdf uploaded. | 3 April 2019 15:18 CEST | Version of Record | https://www.mdpi.com/2226-4310/6/4/40/pdf-vor |
| article xml file uploaded | 3 April 2019 15:18 CEST | Original file | - |
