| article html file updated | 12 February 2020 21:52 CET | Update | https://www.mdpi.com/1999-5903/11/6/140 |
| article html file updated | 3 July 2019 18:15 CEST | Update | - |
| article html file updated | 25 June 2019 10:30 CEST | Original file | - |
| article pdf uploaded. | 25 June 2019 10:29 CEST | Version of Record | https://www.mdpi.com/1999-5903/11/6/140/pdf |
| article xml uploaded. | 25 June 2019 10:29 CEST | Update | https://www.mdpi.com/1999-5903/11/6/140/xml |
| article xml file uploaded | 25 June 2019 10:29 CEST | Original file | - |
