| article html file updated | 6 February 2020 08:47 CET | Update | https://www.mdpi.com/2218-1989/4/2/232 |
| article html file updated | 7 May 2019 15:31 CEST | Update | - |
| article html file updated | 21 March 2019 15:57 CET | Update | - |
| article html file updated | 20 August 2015 04:14 CEST | Update | - |
| article html file updated | 18 July 2014 03:58 CEST | Original file | - |
| article xml file uploaded | 18 July 2014 03:58 CEST | Original file | https://www.mdpi.com/2218-1989/4/2/232/xml |
| article supplementary file uploaded. | 16 July 2014 10:58 CEST | - | https://www.mdpi.com/2218-1989/4/2/232#supplementary |
| article pdf uploaded. | 22 April 2014 14:41 CEST | Version of Record | https://www.mdpi.com/2218-1989/4/2/232/pdf |
