| article html file updated | 6 February 2020 08:26 CET | Update | https://www.mdpi.com/2072-6694/6/2/813 |
| article html file updated | 7 May 2019 16:15 CEST | Update | N/A |
| article html file updated | 21 March 2019 15:07 CET | Update | N/A |
| article html file updated | 20 August 2015 02:23 CEST | Update | N/A |
| article html file updated | 30 June 2014 09:45 CEST | Original file | N/A |
| article xml file uploaded | 30 June 2014 09:44 CEST | Original file | https://www.mdpi.com/2072-6694/6/2/813/xml |
| article pdf uploaded. | 8 April 2014 10:42 CEST | Version of Record | https://www.mdpi.com/2072-6694/6/2/813/pdf |
