| article html file updated | 12 February 2020 05:58 CET | Update | https://www.mdpi.com/1999-4893/12/4/81 |
| article html file updated | 18 October 2019 12:30 CEST | Update | - |
| article html file updated | 8 May 2019 18:38 CEST | Update | - |
| article html file updated | 25 April 2019 10:17 CEST | Update | - |
| article html file updated | 23 April 2019 10:23 CEST | Original file | - |
| article pdf uploaded. | 23 April 2019 10:21 CEST | Updated version of record | https://www.mdpi.com/1999-4893/12/4/81/pdf |
| article xml uploaded. | 23 April 2019 10:21 CEST | Update | https://www.mdpi.com/1999-4893/12/4/81/xml |
| article xml file uploaded | 23 April 2019 10:21 CEST | Update | - |
| article pdf uploaded. | 17 April 2019 14:27 CEST | Version of Record | https://www.mdpi.com/1999-4893/12/4/81/pdf-vor |
| article xml file uploaded | 17 April 2019 14:27 CEST | Original file | - |