| article html file updated | 6 February 2020 02:07 CET | Update | https://www.mdpi.com/2075-4450/4/2/198 |
| article html file updated | 8 May 2019 05:08 CEST | Update | - |
| article html file updated | 20 March 2019 22:34 CET | Update | - |
| article html file updated | 17 June 2015 09:22 CEST | Update | - |
| article html file updated | 27 January 2015 07:07 CET | Original file | - |
| article xml file uploaded | 27 January 2015 07:07 CET | Original file | https://www.mdpi.com/2075-4450/4/2/198/xml |
| article pdf uploaded. | 16 May 2013 14:21 CEST | Version of Record | https://www.mdpi.com/2075-4450/4/2/198/pdf |
