| article html file updated | 29 August 2025 22:22 CEST | Update | https://www.mdpi.com/2079-7737/4/4/814 |
| article html file updated | 16 July 2022 01:16 CEST | Update | N/A |
| article html file updated | 7 February 2020 01:04 CET | Original file | N/A |
| article pdf uploaded. | 17 November 2015 13:34 CET | Version of Record | https://www.mdpi.com/2079-7737/4/4/814/pdf |
| article xml uploaded. | 17 November 2015 13:34 CET | Original file | https://www.mdpi.com/2079-7737/4/4/814/xml |
