| article html file updated | 13 August 2026 07:49 CEST | Update | https://www.mdpi.com/2304-6732/1/4/488 |
| article html file updated | 29 August 2025 21:22 CEST | Update | N/A |
| article html file updated | 20 August 2025 21:56 CEST | Update | N/A |
| article html file updated | 15 July 2022 23:37 CEST | Update | N/A |
| article html file updated | 6 February 2020 14:09 CET | Update | N/A |
| article html file updated | 7 May 2019 04:33 CEST | Update | N/A |
| article html file updated | 25 March 2019 18:44 CET | Update | N/A |
| article html file updated | 21 August 2015 03:20 CEST | Original file | N/A |
| article pdf uploaded. | 3 December 2014 13:30 CET | Version of Record | https://www.mdpi.com/2304-6732/1/4/488/pdf |
