| article html file updated | 6 February 2020 06:44 CET | Update | https://www.mdpi.com/2072-6694/6/1/128 |
| article html file updated | 7 May 2019 19:47 CEST | Update | - |
| article html file updated | 21 March 2019 11:02 CET | Update | - |
| article html file updated | 19 August 2015 17:23 CEST | Update | - |
| article html file updated | 28 April 2014 10:39 CEST | Original file | - |
| article xml file uploaded | 28 April 2014 10:39 CEST | Original file | https://www.mdpi.com/2072-6694/6/1/128/xml |
| article pdf uploaded. | 15 January 2014 09:10 CET | Version of Record | https://www.mdpi.com/2072-6694/6/1/128/pdf |
