| article html file updated | 6 February 2020 14:45 CET | Update | https://www.mdpi.com/2225-1154/3/1/63 |
| article html file updated | 7 May 2019 03:22 CEST | Update | - |
| article html file updated | 25 March 2019 19:46 CET | Update | - |
| article html file updated | 21 August 2015 04:50 CEST | Update | - |
| article html file updated | 15 February 2015 10:06 CET | Update | - |
| article xml file uploaded | 15 February 2015 10:06 CET | Update | https://www.mdpi.com/2225-1154/3/1/63/xml |
| article html file updated | 6 February 2015 02:25 CET | Update | - |
| article xml file uploaded | 6 February 2015 02:25 CET | Update | - |
| article html file updated | 29 January 2015 07:38 CET | Original file | - |
| article xml file uploaded | 29 January 2015 07:38 CET | Original file | - |
| article pdf uploaded. | 24 December 2014 15:02 CET | Version of Record | https://www.mdpi.com/2225-1154/3/1/63/pdf |
