| article html file updated | 6 February 2020 17:26 CET | Update | https://www.mdpi.com/2075-4450/6/2/333 |
| article html file updated | 6 May 2019 22:22 CEST | Update | - |
| article html file updated | 26 March 2019 00:17 CET | Update | - |
| article html file updated | 21 August 2015 10:09 CEST | Update | - |
| article html file updated | 3 July 2015 12:26 CEST | Original file | - |
| article xml file uploaded | 3 July 2015 12:26 CEST | Original file | https://www.mdpi.com/2075-4450/6/2/333/xml |
| article pdf uploaded. | 9 April 2015 10:58 CEST | Version of Record | https://www.mdpi.com/2075-4450/6/2/333/pdf |
