| article html file updated | 6 February 2020 10:54 CET | Update | https://www.mdpi.com/2072-6694/6/3/1540 |
| article html file updated | 21 March 2019 21:26 CET | Update | N/A |
| article html file updated | 20 August 2015 13:24 CEST | Update | N/A |
| article html file updated | 9 October 2014 11:11 CEST | Original file | N/A |
| article xml file uploaded | 9 October 2014 11:11 CEST | Original file | https://www.mdpi.com/2072-6694/6/3/1540/xml |
| article pdf uploaded. | 22 July 2014 11:11 CEST | Version of Record | https://www.mdpi.com/2072-6694/6/3/1540/pdf |
