| article html file updated | 7 February 2020 21:04 CET | Update | https://www.mdpi.com/2071-1050/9/1/80 |
| article html file updated | 22 September 2019 19:29 CEST | Update | N/A |
| article html file updated | 4 May 2019 16:11 CEST | Update | N/A |
| article html file updated | 7 February 2017 10:08 CET | Update | N/A |
| article html file updated | 9 January 2017 13:53 CET | Original file | N/A |
| article xml uploaded. | 9 January 2017 13:52 CET | Original file | https://www.mdpi.com/2071-1050/9/1/80/xml |
| article pdf uploaded. | 9 January 2017 13:52 CET | Version of Record | https://www.mdpi.com/2071-1050/9/1/80/pdf |
