| article html file updated | 7 February 2020 21:17 CET | Update | https://www.mdpi.com/2071-1050/9/1/97 |
| article html file updated | 22 September 2019 20:26 CEST | Update | - |
| article html file updated | 4 May 2019 15:43 CEST | Update | - |
| article html file updated | 7 February 2017 10:14 CET | Update | - |
| article html file updated | 12 January 2017 08:01 CET | Original file | - |
| article xml uploaded. | 12 January 2017 07:59 CET | Update | https://www.mdpi.com/2071-1050/9/1/97/xml |
| article xml uploaded. | 12 January 2017 07:59 CET | Original file | - |
| article pdf uploaded. | 12 January 2017 07:58 CET | Version of Record | https://www.mdpi.com/2071-1050/9/1/97/pdf |
