| article html file updated | 8 February 2020 06:26 CET | Update | https://www.mdpi.com/2071-1050/9/5/870 |
| article html file updated | 24 September 2019 22:55 CEST | Update | N/A |
| article html file updated | 3 May 2019 20:56 CEST | Update | N/A |
| article html file updated | 31 May 2017 10:49 CEST | Update | N/A |
| article html file updated | 22 May 2017 12:09 CEST | Original file | N/A |
| article xml uploaded. | 22 May 2017 12:08 CEST | Original file | https://www.mdpi.com/2071-1050/9/5/870/xml |
| article pdf uploaded. | 22 May 2017 12:08 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/5/870/pdf |
