| article html file updated | 29 August 2025 20:49 CEST | Update | https://www.mdpi.com/2077-0375/3/4/331 |
| article html file updated | 15 July 2022 22:38 CEST | Update | N/A |
| article html file updated | 6 February 2020 05:10 CET | Update | N/A |
| article html file updated | 7 May 2019 22:49 CEST | Update | N/A |
| article html file updated | 21 March 2019 06:39 CET | Update | N/A |
| article html file updated | 17 June 2015 14:17 CEST | Update | N/A |
| article html file updated | 18 March 2014 09:52 CET | Original file | N/A |
| article xml file uploaded | 18 March 2014 09:52 CET | Original file | https://www.mdpi.com/2077-0375/3/4/331/xml |
| article supplementary file uploaded. | 25 October 2013 14:00 CEST | - | https://www.mdpi.com/2077-0375/3/4/331#supplementary |
| article pdf uploaded. | 25 October 2013 14:00 CEST | Version of Record | https://www.mdpi.com/2077-0375/3/4/331/pdf |