| article html file updated | 7 February 2020 21:54 CET | Update | https://www.mdpi.com/2071-1050/9/1/148 |
| article html file updated | 22 September 2019 23:50 CEST | Update | - |
| article html file updated | 4 May 2019 14:13 CEST | Update | - |
| article html file updated | 7 February 2017 10:22 CET | Update | - |
| article html file updated | 21 January 2017 04:25 CET | Original file | - |
| article xml uploaded. | 21 January 2017 04:24 CET | Original file | https://www.mdpi.com/2071-1050/9/1/148/xml |
| article pdf uploaded. | 21 January 2017 04:24 CET | Version of Record | https://www.mdpi.com/2071-1050/9/1/148/pdf |
