| article html file updated | 7 February 2020 22:22 CET | Update | https://www.mdpi.com/2071-1050/9/2/190 |
| article html file updated | 23 September 2019 02:17 CEST | Update | N/A |
| article html file updated | 4 May 2019 13:19 CEST | Update | N/A |
| article html file updated | 1 March 2017 10:26 CET | Update | N/A |
| article html file updated | 4 February 2017 11:48 CET | Original file | N/A |
| article xml uploaded. | 4 February 2017 11:47 CET | Original file | https://www.mdpi.com/2071-1050/9/2/190/xml |
| article pdf uploaded. | 4 February 2017 11:47 CET | Updated version of record | https://www.mdpi.com/2071-1050/9/2/190/pdf |
| article pdf uploaded. | 27 January 2017 16:04 CET | Version of Record | https://www.mdpi.com/2071-1050/9/2/190/pdf-vor |
