| article html file updated | 29 August 2025 21:02 CEST | Update | https://www.mdpi.com/2072-6643/6/4/1662 |
| article html file updated | 15 July 2022 23:00 CEST | Update | - |
| article html file updated | 6 February 2020 08:42 CET | Update | - |
| article html file updated | 7 May 2019 15:40 CEST | Update | - |
| article html file updated | 21 March 2019 15:47 CET | Update | - |
| article html file updated | 20 August 2015 03:51 CEST | Update | - |
| article html file updated | 12 May 2014 15:31 CEST | Original file | - |
| article xml file uploaded | 12 May 2014 15:31 CEST | Original file | https://www.mdpi.com/2072-6643/6/4/1662/xml |
| article pdf uploaded. | 21 April 2014 09:15 CEST | Version of Record | https://www.mdpi.com/2072-6643/6/4/1662/pdf |
