| article html file updated | 6 February 2020 04:04 CET | Update | https://www.mdpi.com/2072-6643/5/9/3399 |
| article html file updated | 8 May 2019 01:05 CEST | Update | N/A |
| article html file updated | 21 March 2019 03:50 CET | Update | N/A |
| article html file updated | 17 June 2015 12:47 CEST | Update | N/A |
| article html file updated | 25 October 2013 09:49 CEST | Original file | N/A |
| article xml file uploaded | 25 October 2013 09:49 CEST | Original file | https://www.mdpi.com/2072-6643/5/9/3399/xml |
| article pdf uploaded. | 29 August 2013 12:29 CEST | Version of Record | https://www.mdpi.com/2072-6643/5/9/3399/pdf |
