| article html file updated | 13 August 2026 17:45 CEST | Update | https://www.mdpi.com/1996-1073/8/4/2714 |
| article html file updated | 29 August 2025 21:38 CEST | Update | N/A |
| article html file updated | 16 July 2022 00:04 CEST | Update | N/A |
| article html file updated | 6 February 2020 17:26 CET | Update | N/A |
| article html file updated | 6 May 2019 22:23 CEST | Update | N/A |
| article html file updated | 26 March 2019 00:16 CET | Update | N/A |
| article html file updated | 21 August 2015 10:07 CEST | Original file | N/A |
| article pdf uploaded. | 9 April 2015 09:16 CEST | Version of Record | https://www.mdpi.com/1996-1073/8/4/2714/pdf |
