| article html file updated | 26 April 2020 09:52 CEST | Original file | https://www.mdpi.com/1999-5903/12/4/74 |
| article pdf uploaded. | 26 April 2020 09:51 CEST | Updated version of record | https://www.mdpi.com/1999-5903/12/4/74/pdf |
| article xml uploaded. | 26 April 2020 09:51 CEST | Update | https://www.mdpi.com/1999-5903/12/4/74/xml |
| article xml file uploaded | 26 April 2020 09:50 CEST | Update | N/A |
| article pdf uploaded. | 18 April 2020 14:41 CEST | Version of Record | https://www.mdpi.com/1999-5903/12/4/74/pdf-vor |
| article xml file uploaded | 18 April 2020 14:41 CEST | Original file | N/A |
