| article html file updated | 6 February 2020 09:08 CET | Update | https://www.mdpi.com/2073-4468/3/2/215 |
| article html file updated | 7 May 2019 14:46 CEST | Update | - |
| article html file updated | 21 March 2019 16:47 CET | Update | - |
| article html file updated | 20 August 2015 06:20 CEST | Update | - |
| article html file updated | 27 November 2014 04:17 CET | Original file | - |
| article xml file uploaded | 27 November 2014 04:17 CET | Original file | https://www.mdpi.com/2073-4468/3/2/215/xml |
| article pdf uploaded. | 26 May 2014 08:34 CEST | Updated version of record | https://www.mdpi.com/2073-4468/3/2/215/pdf |
| article pdf uploaded. | 9 May 2014 09:43 CEST | Version of Record | https://www.mdpi.com/2073-4468/3/2/215/pdf-vor |
