| article html file updated | 13 February 2020 22:09 CET | Update | https://www.mdpi.com/2075-4418/9/4/138 |
| article html file updated | 30 December 2019 11:00 CET | Update | - |
| article html file updated | 21 October 2019 09:48 CEST | Original file | - |
| article pdf uploaded. | 21 October 2019 09:46 CEST | Updated version of record | https://www.mdpi.com/2075-4418/9/4/138/pdf |
| article xml uploaded. | 21 October 2019 09:46 CEST | Update | https://www.mdpi.com/2075-4418/9/4/138/xml |
| article xml file uploaded | 21 October 2019 09:46 CEST | Update | - |
| article pdf uploaded. | 2 October 2019 13:05 CEST | Version of Record | https://www.mdpi.com/2075-4418/9/4/138/pdf-vor |
| article xml file uploaded | 2 October 2019 13:05 CEST | Original file | - |
