| article html file updated | 8 February 2020 03:46 CET | Update | https://www.mdpi.com/2071-1050/9/4/633 |
| article html file updated | 24 September 2019 08:49 CEST | Update | - |
| article html file updated | 4 May 2019 01:52 CEST | Update | - |
| article html file updated | 28 April 2017 11:07 CEST | Update | - |
| article html file updated | 25 April 2017 11:47 CEST | Original file | - |
| article xml uploaded. | 25 April 2017 11:46 CEST | Original file | https://www.mdpi.com/2071-1050/9/4/633/xml |
| article pdf uploaded. | 25 April 2017 11:46 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/4/633/pdf |
| article pdf uploaded. | 17 April 2017 14:48 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/4/633/pdf-vor |
