| article html file updated | 6 February 2020 15:35 CET | Update | https://www.mdpi.com/2072-6643/7/2/887 |
| article html file updated | 7 May 2019 01:41 CEST | Update | - |
| article html file updated | 25 March 2019 21:10 CET | Update | - |
| article html file updated | 21 August 2015 06:45 CEST | Update | - |
| article html file updated | 28 February 2015 03:10 CET | Original file | - |
| article xml file uploaded | 28 February 2015 03:10 CET | Original file | https://www.mdpi.com/2072-6643/7/2/887/xml |
| article pdf uploaded. | 29 January 2015 14:22 CET | Version of Record | https://www.mdpi.com/2072-6643/7/2/887/pdf |
