| article html file updated | 29 August 2025 21:39 CEST | Update | https://www.mdpi.com/2072-6694/7/2/648 |
| article html file updated | 16 July 2022 00:05 CEST | Update | - |
| article html file updated | 6 February 2020 17:31 CET | Update | - |
| article html file updated | 6 May 2019 22:14 CEST | Update | - |
| article html file updated | 26 March 2019 00:25 CET | Update | - |
| article html file updated | 21 August 2015 10:16 CEST | Update | - |
| article html file updated | 7 July 2015 04:43 CEST | Original file | - |
| article xml file uploaded | 7 July 2015 04:43 CEST | Original file | https://www.mdpi.com/2072-6694/7/2/648/xml |
| article pdf uploaded. | 10 April 2015 15:02 CEST | Version of Record | https://www.mdpi.com/2072-6694/7/2/648/pdf |