| article html file updated | 29 February 2020 05:34 CET | Original file | https://www.mdpi.com/1999-5903/12/2/28 |
| article pdf uploaded. | 29 February 2020 05:33 CET | Updated version of record | https://www.mdpi.com/1999-5903/12/2/28/pdf |
| article xml uploaded. | 29 February 2020 05:33 CET | Update | https://www.mdpi.com/1999-5903/12/2/28/xml |
| article xml file uploaded | 29 February 2020 05:33 CET | Update | - |
| article pdf uploaded. | 7 February 2020 16:22 CET | Version of Record | https://www.mdpi.com/1999-5903/12/2/28/pdf-vor |
| article xml file uploaded | 7 February 2020 16:22 CET | Original file | - |
