| article html file updated | 6 February 2020 05:08 CET | Update | https://www.mdpi.com/1996-1073/6/11/5597 |
| article html file updated | 7 May 2019 22:53 CEST | Update | - |
| article html file updated | 21 March 2019 06:35 CET | Update | - |
| article html file updated | 20 July 2017 11:33 CEST | Update | - |
| article html file updated | 20 July 2017 11:31 CEST | Update | - |
| article html file updated | 20 July 2017 11:30 CEST | Original file | - |
| article xml uploaded. | 20 July 2017 11:28 CEST | Original file | https://www.mdpi.com/1996-1073/6/11/5597/xml |
| article pdf uploaded. | 24 October 2013 15:21 CEST | Version of Record | https://www.mdpi.com/1996-1073/6/11/5597/pdf |
