| article html file updated | 6 February 2020 11:45 CET | Update | https://www.mdpi.com/2218-1989/4/3/722 |
| article html file updated | 7 May 2019 09:11 CEST | Update | - |
| article html file updated | 21 March 2019 23:44 CET | Update | - |
| article html file updated | 20 August 2015 16:28 CEST | Update | - |
| article html file updated | 11 October 2014 03:20 CEST | Original file | - |
| article xml file uploaded | 11 October 2014 03:20 CEST | Original file | https://www.mdpi.com/2218-1989/4/3/722/xml |
| article supplementary file uploaded. | 25 August 2014 14:29 CEST | - | https://www.mdpi.com/2218-1989/4/3/722#supplementary |
| article pdf uploaded. | 25 August 2014 14:29 CEST | Version of Record | https://www.mdpi.com/2218-1989/4/3/722/pdf |
