| article html file updated | 8 February 2020 03:22 CET | Update | https://www.mdpi.com/2071-1050/9/4/587 |
| article html file updated | 24 September 2019 06:31 CEST | Update | - |
| article html file updated | 4 May 2019 02:38 CEST | Update | - |
| article html file updated | 28 April 2017 11:01 CEST | Update | - |
| article html file updated | 13 April 2017 12:05 CEST | Original file | - |
| article xml uploaded. | 13 April 2017 12:04 CEST | Original file | https://www.mdpi.com/2071-1050/9/4/587/xml |
| article pdf uploaded. | 13 April 2017 12:04 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/4/587/pdf |
| article pdf uploaded. | 11 April 2017 15:25 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/4/587/pdf-vor |
