| article html file updated | 8 February 2020 06:34 CET | Update | https://www.mdpi.com/2071-1050/9/6/891 |
| article html file updated | 24 September 2019 23:37 CEST | Update | N/A |
| article html file updated | 3 May 2019 20:39 CEST | Update | N/A |
| article html file updated | 28 June 2017 14:32 CEST | Update | N/A |
| article html file updated | 25 May 2017 11:58 CEST | Original file | N/A |
| article xml uploaded. | 25 May 2017 11:57 CEST | Update | https://www.mdpi.com/2071-1050/9/6/891/xml |
| article pdf uploaded. | 25 May 2017 11:57 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/6/891/pdf |
| article pdf uploaded. | 24 May 2017 12:48 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/6/891/pdf-vor |
