| article html file updated | 6 February 2020 04:24 CET | Update | https://www.mdpi.com/2072-6643/5/9/3684 |
| article html file updated | 8 May 2019 00:23 CEST | Update | N/A |
| article html file updated | 21 March 2019 04:38 CET | Update | N/A |
| article html file updated | 17 June 2015 13:16 CEST | Update | N/A |
| article html file updated | 25 October 2013 10:04 CEST | Original file | N/A |
| article xml file uploaded | 25 October 2013 10:03 CEST | Original file | https://www.mdpi.com/2072-6643/5/9/3684/xml |
| article pdf uploaded. | 17 September 2013 11:17 CEST | Version of Record | https://www.mdpi.com/2072-6643/5/9/3684/pdf |
