| article html file updated | 8 February 2020 03:37 CET | Update | https://www.mdpi.com/2071-1050/9/4/614 |
| article html file updated | 24 September 2019 07:55 CEST | Update | - |
| article html file updated | 4 May 2019 02:09 CEST | Update | - |
| article html file updated | 28 April 2017 11:05 CEST | Update | - |
| article html file updated | 17 April 2017 12:56 CEST | Original file | - |
| article xml uploaded. | 17 April 2017 12:54 CEST | Update | https://www.mdpi.com/2071-1050/9/4/614/xml |
| article pdf uploaded. | 17 April 2017 12:54 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/4/614/pdf |
| article pdf uploaded. | 14 April 2017 13:51 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/4/614/pdf-vor |
