| article html file updated | 29 August 2025 21:03 CEST | Update | https://www.mdpi.com/1999-4915/6/5/1992 |
| article html file updated | 15 July 2022 23:01 CEST | Update | - |
| article html file updated | 6 February 2020 09:01 CET | Update | - |
| article html file updated | 7 May 2019 15:01 CEST | Update | - |
| article html file updated | 21 March 2019 16:31 CET | Update | - |
| article html file updated | 20 August 2015 05:42 CEST | Update | - |
| article html file updated | 5 June 2014 08:49 CEST | Original file | - |
| article xml file uploaded | 5 June 2014 08:49 CEST | Original file | https://www.mdpi.com/1999-4915/6/5/1992/xml |
| article pdf uploaded. | 5 May 2014 10:52 CEST | Version of Record | https://www.mdpi.com/1999-4915/6/5/1992/pdf |
