| article html file updated | 8 February 2020 07:17 CET | Update | https://www.mdpi.com/2071-1050/9/6/938 |
| article html file updated | 3 May 2019 19:21 CEST | Update | N/A |
| article html file updated | 28 June 2017 14:38 CEST | Update | N/A |
| article html file updated | 20 June 2017 09:55 CEST | Update | N/A |
| article xml uploaded. | 20 June 2017 09:54 CEST | Update | https://www.mdpi.com/2071-1050/9/6/938/xml |
| article pdf uploaded. | 20 June 2017 09:54 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/6/938/pdf |
| article html file updated | 5 June 2017 13:07 CEST | Original file | N/A |
| article pdf uploaded. | 5 June 2017 13:05 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/6/938/pdf-vor |
| article pdf uploaded. | 2 June 2017 12:29 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/6/938/pdf-vor |
