| article html file updated | 7 February 2020 21:24 CET | Update | https://www.mdpi.com/2071-1050/9/1/110 |
| article html file updated | 22 September 2019 21:01 CEST | Update | - |
| article html file updated | 4 May 2019 15:26 CEST | Update | - |
| article html file updated | 7 February 2017 10:15 CET | Update | - |
| article html file updated | 13 January 2017 11:51 CET | Original file | - |
| article xml uploaded. | 13 January 2017 11:50 CET | Original file | https://www.mdpi.com/2071-1050/9/1/110/xml |
| article pdf uploaded. | 13 January 2017 11:50 CET | Version of Record | https://www.mdpi.com/2071-1050/9/1/110/pdf |
