| article html file updated | 29 August 2025 22:22 CEST | Update | https://www.mdpi.com/2306-5338/2/4/242 |
| 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. | 9 December 2015 07:02 CET | Updated version of record | https://www.mdpi.com/2306-5338/2/4/242/pdf |
| article pdf uploaded. | 17 November 2015 14:11 CET | Version of Record | https://www.mdpi.com/2306-5338/2/4/242/pdf-vor |
| article xml uploaded. | 17 November 2015 14:11 CET | Original file | https://www.mdpi.com/2306-5338/2/4/242/xml |
