| article html file updated | 6 February 2020 20:54 CET | Update | https://www.mdpi.com/1996-1073/8/7/7428 |
| article html file updated | 6 May 2019 15:17 CEST | Update | - |
| article html file updated | 26 March 2019 07:05 CET | Update | - |
| article html file updated | 21 August 2015 15:07 CEST | Update | - |
| article html file updated | 10 August 2015 12:31 CEST | Original file | - |
| article xml file uploaded | 10 August 2015 12:31 CEST | Original file | https://www.mdpi.com/1996-1073/8/7/7428/xml |
| article pdf uploaded. | 22 July 2015 09:14 CEST | Version of Record | https://www.mdpi.com/1996-1073/8/7/7428/pdf |
