| article html file updated | 29 August 2025 21:16 CEST | Update | https://www.mdpi.com/2079-8954/2/4/451 |
| article html file updated | 15 July 2022 23:26 CEST | Update | - |
| article html file updated | 6 February 2020 12:39 CET | Update | - |
| article html file updated | 7 May 2019 07:29 CEST | Update | - |
| article html file updated | 22 March 2019 02:04 CET | Update | - |
| article html file updated | 20 August 2015 22:06 CEST | Update | - |
| article html file updated | 24 October 2014 07:55 CEST | Original file | - |
| article xml file uploaded | 24 October 2014 07:55 CEST | Original file | https://www.mdpi.com/2079-8954/2/4/451/xml |
| article pdf uploaded. | 21 October 2014 07:49 CEST | Updated version of record | https://www.mdpi.com/2079-8954/2/4/451/pdf |
| article pdf uploaded. | 1 October 2014 16:12 CEST | Version of Record | https://www.mdpi.com/2079-8954/2/4/451/pdf-vor |
