| article html file updated | 29 August 2025 22:21 CEST | Update | https://www.mdpi.com/2076-3417/5/4/1221 |
| article html file updated | 16 July 2022 01:15 CEST | Update | N/A |
| article html file updated | 7 February 2020 00:59 CET | Original file | N/A |
| article pdf uploaded. | 16 November 2015 11:00 CET | Version of Record | https://www.mdpi.com/2076-3417/5/4/1221/pdf |
| article xml uploaded. | 16 November 2015 11:00 CET | Original file | https://www.mdpi.com/2076-3417/5/4/1221/xml |
