| article html file updated | 8 February 2020 07:35 CET | Update | https://www.mdpi.com/2071-1050/9/6/961 |
| article html file updated | 25 September 2019 04:51 CEST | Update | - |
| article html file updated | 3 May 2019 18:46 CEST | Update | - |
| article html file updated | 28 June 2017 14:40 CEST | Update | - |
| article html file updated | 12 June 2017 09:43 CEST | Original file | - |
| article xml uploaded. | 12 June 2017 09:41 CEST | Original file | https://www.mdpi.com/2071-1050/9/6/961/xml |
| article pdf uploaded. | 12 June 2017 09:41 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/6/961/pdf |
| article pdf uploaded. | 6 June 2017 12:45 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/6/961/pdf-vor |
