| article html file updated | 7 February 2020 10:04 CET | Update | https://www.mdpi.com/2071-1050/8/6/548 |
| article html file updated | 5 May 2019 13:09 CEST | Update | - |
| article html file updated | 27 March 2019 07:17 CET | Update | - |
| article pdf uploaded. | 21 January 2019 11:15 CET | Updated version of record | https://www.mdpi.com/2071-1050/8/6/548/pdf |
| article html file updated | 29 June 2016 05:31 CEST | Update | - |
| article html file updated | 14 June 2016 22:39 CEST | Original file | - |
| article xml uploaded. | 13 June 2016 09:05 CEST | Original file | https://www.mdpi.com/2071-1050/8/6/548/xml |
| article pdf uploaded. | 13 June 2016 09:05 CEST | Version of Record | https://www.mdpi.com/2071-1050/8/6/548/pdf-vor |
