| article html file updated | 29 August 2025 20:51 CEST | Update | https://www.mdpi.com/2076-3387/3/4/237 |
| article html file updated | 15 July 2022 22:42 CEST | Update | - |
| article html file updated | 6 February 2020 05:39 CET | Update | - |
| article html file updated | 7 May 2019 21:55 CEST | Update | - |
| article html file updated | 21 March 2019 07:54 CET | Update | - |
| article html file updated | 19 August 2015 10:05 CEST | Update | - |
| article html file updated | 14 August 2014 11:40 CEST | Update | - |
| article xml file uploaded | 14 August 2014 11:40 CEST | Update | https://www.mdpi.com/2076-3387/3/4/237/xml |
| article html file updated | 14 August 2014 11:20 CEST | Original file | - |
| article xml file uploaded | 14 August 2014 11:20 CEST | Original file | - |
| article pdf uploaded. | 20 November 2013 17:08 CET | Updated version of record | https://www.mdpi.com/2076-3387/3/4/237/pdf |
| article pdf uploaded. | 19 November 2013 15:27 CET | Version of Record | https://www.mdpi.com/2076-3387/3/4/237/pdf-vor |