| article html file updated | 11 February 2020 04:53 CET | Update | https://www.mdpi.com/1999-5903/11/1/4 |
| article html file updated | 12 October 2019 09:22 CEST | Update | - |
| article html file updated | 27 April 2019 15:37 CEST | Update | - |
| article html file updated | 13 April 2019 11:26 CEST | Update | - |
| article html file updated | 2 April 2019 17:42 CEST | Update | - |
| article html file updated | 29 January 2019 02:44 CET | Update | - |
| article html file updated | 25 December 2018 06:15 CET | Update | - |
| article pdf uploaded. | 25 December 2018 05:35 CET | Updated version of record | https://www.mdpi.com/1999-5903/11/1/4/pdf |
| article xml uploaded. | 25 December 2018 05:35 CET | Update | https://www.mdpi.com/1999-5903/11/1/4/xml |
| article xml file uploaded | 25 December 2018 05:35 CET | Update | - |
| article html file updated | 22 December 2018 12:03 CET | Original file | - |
| article pdf uploaded. | 22 December 2018 12:02 CET | Version of Record | https://www.mdpi.com/1999-5903/11/1/4/pdf-vor |
| article xml uploaded. | 22 December 2018 12:02 CET | Update | - |
| article xml file uploaded | 22 December 2018 12:02 CET | Original file | - |
