| article html file updated | 6 February 2020 06:26 CET | Update | https://www.mdpi.com/2072-6643/6/1/124 |
| article html file updated | 7 May 2019 20:25 CEST | Update | - |
| article html file updated | 21 March 2019 10:07 CET | Update | - |
| article html file updated | 19 August 2015 15:15 CEST | Update | - |
| article html file updated | 17 February 2014 12:28 CET | Original file | - |
| article xml file uploaded | 17 February 2014 12:27 CET | Original file | https://www.mdpi.com/2072-6643/6/1/124/xml |
| article pdf uploaded. | 27 December 2013 11:24 CET | Version of Record | https://www.mdpi.com/2072-6643/6/1/124/pdf |
