| article html file updated | 6 February 2020 17:30 CET | Update | https://www.mdpi.com/2072-6643/7/4/2707 |
| article html file updated | 6 May 2019 22:16 CEST | Update | N/A |
| article html file updated | 26 March 2019 00:22 CET | Update | N/A |
| article html file updated | 21 August 2015 10:14 CEST | Update | N/A |
| article html file updated | 28 April 2015 08:09 CEST | Original file | N/A |
| article xml file uploaded | 28 April 2015 08:09 CEST | Original file | https://www.mdpi.com/2072-6643/7/4/2707/xml |
| article pdf uploaded. | 10 April 2015 10:46 CEST | Version of Record | https://www.mdpi.com/2072-6643/7/4/2707/pdf |
