| article html file updated | 8 February 2020 01:06 CET | Update | https://www.mdpi.com/2071-1050/9/3/408 |
| article html file updated | 4 May 2019 07:30 CEST | Update | - |
| article html file updated | 28 March 2017 06:11 CEST | Update | - |
| article html file updated | 9 March 2017 11:56 CET | Original file | - |
| article xml uploaded. | 9 March 2017 11:55 CET | Original file | https://www.mdpi.com/2071-1050/9/3/408/xml |
| article pdf uploaded. | 9 March 2017 11:55 CET | Version of Record | https://www.mdpi.com/2071-1050/9/3/408/pdf |
