| article html file updated | 12 August 2026 19:07 CEST | Update | https://www.mdpi.com/2073-4336/4/2/144 |
| article html file updated | 29 August 2025 20:37 CEST | Update | N/A |
| article html file updated | 15 July 2022 22:16 CEST | Update | N/A |
| article html file updated | 6 February 2020 01:46 CET | Update | N/A |
| article html file updated | 8 May 2019 05:48 CEST | Update | N/A |
| article html file updated | 20 March 2019 21:41 CET | Update | N/A |
| article html file updated | 19 December 2016 11:37 CET | Original file | N/A |
| article pdf uploaded. | 6 May 2013 18:26 CEST | Updated version of record | https://www.mdpi.com/2073-4336/4/2/144/pdf |
| article pdf uploaded. | 26 April 2013 09:42 CEST | Version of Record | https://www.mdpi.com/2073-4336/4/2/144/pdf-vor |
