| article html file updated | 8 February 2020 07:29 CET | Update | https://www.mdpi.com/2071-1050/9/6/958 |
| article html file updated | 25 September 2019 04:15 CEST | Update | - |
| article html file updated | 3 May 2019 18:58 CEST | Update | - |
| article html file updated | 28 June 2017 14:40 CEST | Update | - |
| article html file updated | 6 June 2017 13:50 CEST | Original file | - |
| article xml uploaded. | 6 June 2017 13:49 CEST | Original file | https://www.mdpi.com/2071-1050/9/6/958/xml |
| article pdf uploaded. | 6 June 2017 13:49 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/6/958/pdf |
| article pdf uploaded. | 5 June 2017 09:34 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/6/958/pdf-vor |
