| article html file updated | 8 February 2020 07:02 CET | Update | https://www.mdpi.com/2071-1050/9/6/914 |
| article html file updated | 25 September 2019 02:03 CEST | Update | - |
| article html file updated | 3 May 2019 19:49 CEST | Update | - |
| article html file updated | 28 June 2017 14:35 CEST | Update | - |
| article html file updated | 31 May 2017 11:11 CEST | Original file | - |
| article xml uploaded. | 31 May 2017 11:09 CEST | Original file | https://www.mdpi.com/2071-1050/9/6/914/xml |
| article pdf uploaded. | 31 May 2017 11:09 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/6/914/pdf |
| article pdf uploaded. | 30 May 2017 14:00 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/6/914/pdf-vor |
