| article html file updated | 8 February 2020 04:28 CET | Update | https://www.mdpi.com/2071-1050/9/5/680 |
| article html file updated | 24 September 2019 12:44 CEST | Update | - |
| article html file updated | 4 May 2019 00:35 CEST | Update | - |
| article html file updated | 31 May 2017 10:24 CEST | Update | - |
| article html file updated | 27 April 2017 05:18 CEST | Original file | - |
| article xml uploaded. | 27 April 2017 05:17 CEST | Original file | https://www.mdpi.com/2071-1050/9/5/680/xml |
| article pdf uploaded. | 27 April 2017 05:17 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/5/680/pdf |
