| article html file updated | 7 February 2020 11:02 CET | Update | https://www.mdpi.com/2071-1050/8/7/615 |
| article html file updated | 5 May 2019 11:22 CEST | Update | - |
| article html file updated | 27 March 2019 09:02 CET | Update | - |
| article html file updated | 29 July 2016 12:51 CEST | Update | - |
| article html file updated | 30 June 2016 12:18 CEST | Original file | - |
| article xml uploaded. | 30 June 2016 12:16 CEST | Original file | https://www.mdpi.com/2071-1050/8/7/615/xml |
| article pdf uploaded. | 30 June 2016 12:16 CEST | Version of Record | https://www.mdpi.com/2071-1050/8/7/615/pdf |
