| article html file updated | 29 August 2025 21:21 CEST | Update | https://www.mdpi.com/2304-6732/1/4/432 |
| article html file updated | 15 July 2022 23:35 CEST | Update | - |
| article html file updated | 6 February 2020 13:50 CET | Update | - |
| article html file updated | 7 May 2019 05:07 CEST | Update | - |
| article html file updated | 25 March 2019 18:07 CET | Original file | - |
| article pdf uploaded. | 21 November 2014 13:59 CET | Version of Record | https://www.mdpi.com/2304-6732/1/4/432/pdf |
