| article html file updated | 8 February 2020 04:15 CET | Update | https://www.mdpi.com/2071-1050/9/4/655 |
| article html file updated | 24 September 2019 11:33 CEST | Update | - |
| article html file updated | 4 May 2019 01:00 CEST | Update | - |
| article html file updated | 28 April 2017 11:11 CEST | Update | - |
| article html file updated | 24 April 2017 06:03 CEST | Original file | - |
| article xml uploaded. | 24 April 2017 06:02 CEST | Original file | https://www.mdpi.com/2071-1050/9/4/655/xml |
| article pdf uploaded. | 24 April 2017 06:02 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/4/655/pdf |
