| article html file updated | 7 February 2020 23:40 CET | Update | https://www.mdpi.com/2071-1050/9/2/300 |
| article html file updated | 23 September 2019 09:30 CEST | Update | - |
| article html file updated | 4 May 2019 10:42 CEST | Update | - |
| article html file updated | 1 March 2017 10:43 CET | Update | - |
| article html file updated | 17 February 2017 15:11 CET | Original file | - |
| article xml uploaded. | 17 February 2017 15:09 CET | Update | https://www.mdpi.com/2071-1050/9/2/300/xml |
| article xml uploaded. | 17 February 2017 15:09 CET | Original file | - |
| article pdf uploaded. | 17 February 2017 15:09 CET | Version of Record | https://www.mdpi.com/2071-1050/9/2/300/pdf |
