| article html file updated | 6 February 2020 07:26 CET | Update | https://www.mdpi.com/1660-4601/11/2/2209 |
| article html file updated | 7 May 2019 18:18 CEST | Update | N/A |
| article html file updated | 21 March 2019 12:45 CET | Update | N/A |
| article html file updated | 19 August 2015 21:23 CEST | Update | N/A |
| article html file updated | 18 March 2014 09:40 CET | Original file | N/A |
| article xml file uploaded | 18 March 2014 09:40 CET | Original file | https://www.mdpi.com/1660-4601/11/2/2209/xml |
| article pdf uploaded. | 21 February 2014 14:55 CET | Version of Record | https://www.mdpi.com/1660-4601/11/2/2209/pdf |
