| article html file updated | 29 August 2025 20:44 CEST | Update | https://www.mdpi.com/1996-1073/6/8/4170 |
| article html file updated | 15 July 2022 22:29 CEST | Update | - |
| article html file updated | 6 February 2020 03:49 CET | Update | - |
| article html file updated | 20 September 2019 00:04 CEST | Update | - |
| article html file updated | 8 May 2019 01:40 CEST | Update | - |
| article html file updated | 21 March 2019 03:03 CET | Update | - |
| article html file updated | 17 February 2017 06:06 CET | Original file | - |
| article pdf uploaded. | 15 August 2013 12:18 CEST | Version of Record | https://www.mdpi.com/1996-1073/6/8/4170/pdf |
