| article html file updated | 8 February 2020 03:23 CET | Update | https://www.mdpi.com/2071-1050/9/4/594 |
| article html file updated | 24 September 2019 06:40 CEST | Update | - |
| article html file updated | 4 May 2019 02:35 CEST | Update | - |
| article html file updated | 28 April 2017 11:02 CEST | Update | - |
| article html file updated | 13 April 2017 12:08 CEST | Original file | - |
| article xml uploaded. | 13 April 2017 12:07 CEST | Original file | https://www.mdpi.com/2071-1050/9/4/594/xml |
| article pdf uploaded. | 13 April 2017 12:07 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/4/594/pdf |
| article pdf uploaded. | 12 April 2017 11:56 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/4/594/pdf-vor |
