| article html file updated | 7 February 2020 21:38 CET | Update | https://www.mdpi.com/2071-1050/9/1/130 |
| article html file updated | 22 September 2019 22:20 CEST | Update | - |
| article html file updated | 4 May 2019 14:50 CEST | Update | - |
| article html file updated | 7 February 2017 10:19 CET | Update | - |
| article html file updated | 17 January 2017 11:47 CET | Original file | - |
| article xml uploaded. | 17 January 2017 11:45 CET | Original file | https://www.mdpi.com/2071-1050/9/1/130/xml |
| article pdf uploaded. | 17 January 2017 11:45 CET | Version of Record | https://www.mdpi.com/2071-1050/9/1/130/pdf |
