| article html file updated | 7 February 2020 23:15 CET | Update | https://www.mdpi.com/2071-1050/9/2/260 |
| article html file updated | 23 September 2019 07:07 CEST | Update | N/A |
| article html file updated | 4 May 2019 11:33 CEST | Update | N/A |
| article html file updated | 1 March 2017 10:37 CET | Update | N/A |
| article html file updated | 13 February 2017 11:47 CET | Original file | N/A |
| article xml uploaded. | 13 February 2017 11:46 CET | Update | https://www.mdpi.com/2071-1050/9/2/260/xml |
| article xml uploaded. | 13 February 2017 11:46 CET | Original file | N/A |
| article pdf uploaded. | 13 February 2017 11:46 CET | Version of Record | https://www.mdpi.com/2071-1050/9/2/260/pdf |
