| article html file updated | 6 February 2020 16:11 CET | Update | https://www.mdpi.com/2071-1050/7/3/2454 |
| article html file updated | 7 May 2019 00:33 CEST | Update | - |
| article html file updated | 25 March 2019 22:11 CET | Update | - |
| article html file updated | 21 August 2015 08:01 CEST | Update | - |
| article html file updated | 17 March 2015 05:03 CET | Original file | - |
| article xml file uploaded | 17 March 2015 05:03 CET | Original file | https://www.mdpi.com/2071-1050/7/3/2454/xml |
| article pdf uploaded. | 2 March 2015 08:38 CET | Updated version of record | https://www.mdpi.com/2071-1050/7/3/2454/pdf |
| article pdf uploaded. | 27 February 2015 13:45 CET | Version of Record | https://www.mdpi.com/2071-1050/7/3/2454/pdf-vor |
