| article html file updated | 6 February 2020 02:16 CET | Update | https://www.mdpi.com/1660-4601/10/6/2109 |
| article html file updated | 19 September 2019 21:03 CEST | Update | N/A |
| article html file updated | 8 May 2019 04:51 CEST | Update | N/A |
| article html file updated | 20 March 2019 22:53 CET | Update | N/A |
| article html file updated | 17 June 2015 09:34 CEST | Update | N/A |
| article html file updated | 6 August 2013 15:38 CEST | Original file | N/A |
| article xml file uploaded | 6 August 2013 15:38 CEST | Original file | https://www.mdpi.com/1660-4601/10/6/2109/xml |
| article pdf uploaded. | 23 May 2013 12:26 CEST | Version of Record | https://www.mdpi.com/1660-4601/10/6/2109/pdf |
