| article html file updated | 29 August 2025 22:30 CEST | Update | https://www.mdpi.com/2079-4983/6/4/1099 |
| article html file updated | 20 August 2025 22:08 CEST | Update | N/A |
| article html file updated | 7 February 2020 02:31 CET | Original file | N/A |
| article pdf uploaded. | 21 December 2015 14:31 CET | Version of Record | https://www.mdpi.com/2079-4983/6/4/1099/pdf |
