| article html file updated | 6 February 2020 06:06 CET | Update | https://www.mdpi.com/2072-6694/5/4/1691 |
| article html file updated | 7 May 2019 21:03 CEST | Update | - |
| article html file updated | 21 March 2019 09:09 CET | Update | - |
| article html file updated | 19 August 2015 13:11 CEST | Update | - |
| article supplementary file uploaded. | 10 January 2014 09:47 CET | - | https://www.mdpi.com/2072-6694/5/4/1691#supplementary |
| article supplementary file uploaded. | 10 January 2014 09:05 CET | - | https://www.mdpi.com/2072-6694/5/4/1691#supplementary |
| article html file updated | 6 January 2014 11:10 CET | Original file | - |
| article xml file uploaded | 6 January 2014 11:10 CET | Original file | https://www.mdpi.com/2072-6694/5/4/1691/xml |
| article pdf uploaded. | 10 December 2013 15:44 CET | Version of Record | https://www.mdpi.com/2072-6694/5/4/1691/pdf |