| article html file updated | 6 February 2020 10:53 CET | Update | https://www.mdpi.com/2072-4292/6/7/6709 |
| article html file updated | 7 May 2019 11:16 CEST | Update | N/A |
| article html file updated | 21 March 2019 21:23 CET | Update | N/A |
| article html file updated | 20 August 2015 13:21 CEST | Update | N/A |
| article html file updated | 13 August 2014 13:04 CEST | Original file | N/A |
| article xml file uploaded | 13 August 2014 13:03 CEST | Original file | https://www.mdpi.com/2072-4292/6/7/6709/xml |
| article pdf uploaded. | 22 July 2014 09:27 CEST | Version of Record | https://www.mdpi.com/2072-4292/6/7/6709/pdf |
