| article html file updated | 30 August 2025 07:34 CEST | Update | https://www.mdpi.com/2227-7382/6/4/40 |
| article html file updated | 17 July 2022 04:20 CEST | Update | - |
| article html file updated | 10 February 2020 14:34 CET | Update | - |
| article html file updated | 28 April 2019 22:38 CEST | Update | - |
| article html file updated | 14 April 2019 17:50 CEST | Update | - |
| article html file updated | 1 April 2019 02:52 CEST | Update | - |
| article html file updated | 26 December 2018 23:13 CET | Update | - |
| article html file updated | 10 October 2018 06:39 CEST | Update | - |
| article pdf uploaded. | 10 October 2018 06:39 CEST | Updated version of record | https://www.mdpi.com/2227-7382/6/4/40/pdf |
| article xml uploaded. | 10 October 2018 06:39 CEST | Update | https://www.mdpi.com/2227-7382/6/4/40/xml |
| article xml file uploaded | 10 October 2018 06:39 CEST | Update | - |
| article html file updated | 8 October 2018 09:55 CEST | Original file | - |
| article pdf uploaded. | 8 October 2018 09:54 CEST | Version of Record | https://www.mdpi.com/2227-7382/6/4/40/pdf-vor |
| article xml uploaded. | 8 October 2018 09:54 CEST | Update | - |
| article xml file uploaded | 8 October 2018 09:54 CEST | Original file | - |
