| article html file updated | 8 February 2020 03:56 CET | Update | https://www.mdpi.com/2071-1050/9/4/652 |
| article html file updated | 24 September 2019 09:46 CEST | Update | - |
| article html file updated | 4 May 2019 01:34 CEST | Update | - |
| article html file updated | 28 April 2017 11:10 CEST | Update | - |
| article html file updated | 20 April 2017 13:24 CEST | Original file | - |
| article xml uploaded. | 20 April 2017 13:23 CEST | Original file | https://www.mdpi.com/2071-1050/9/4/652/xml |
| article pdf uploaded. | 20 April 2017 13:23 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/4/652/pdf |
| article pdf uploaded. | 19 April 2017 14:56 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/4/652/pdf-vor |
