| article html file updated | 7 February 2020 10:07 CET | Update | https://www.mdpi.com/2071-1050/8/6/553 |
| article html file updated | 5 May 2019 13:02 CEST | Update | - |
| article html file updated | 27 March 2019 07:24 CET | Update | - |
| article html file updated | 29 June 2016 05:32 CEST | Update | - |
| article html file updated | 14 June 2016 14:59 CEST | Original file | - |
| article xml uploaded. | 14 June 2016 14:58 CEST | Original file | https://www.mdpi.com/2071-1050/8/6/553/xml |
| article pdf uploaded. | 14 June 2016 14:58 CEST | Version of Record | https://www.mdpi.com/2071-1050/8/6/553/pdf |
