| article html file updated | 23 October 2025 06:20 CEST | Update | https://www.mdpi.com/2076-2615/4/3/409 |
| article html file updated | 6 February 2020 10:32 CET | Update | N/A |
| article html file updated | 21 March 2019 20:24 CET | Update | N/A |
| article html file updated | 20 August 2015 12:09 CEST | Update | N/A |
| article html file updated | 24 November 2014 08:51 CET | Original file | N/A |
| article xml file uploaded | 24 November 2014 08:51 CET | Original file | https://www.mdpi.com/2076-2615/4/3/409/xml |
| article pdf uploaded. | 8 July 2014 12:12 CEST | Version of Record | https://www.mdpi.com/2076-2615/4/3/409/pdf |
