| article html file updated | 7 February 2020 07:08 CET | Update | https://www.mdpi.com/2071-1050/8/4/352 |
| article html file updated | 5 May 2019 18:53 CEST | Update | - |
| article html file updated | 27 March 2019 01:39 CET | Update | - |
| article html file updated | 29 April 2016 05:54 CEST | Update | - |
| article html file updated | 12 April 2016 11:55 CEST | Original file | - |
| article xml uploaded. | 12 April 2016 11:54 CEST | Original file | https://www.mdpi.com/2071-1050/8/4/352/xml |
| article pdf uploaded. | 12 April 2016 11:54 CEST | Version of Record | https://www.mdpi.com/2071-1050/8/4/352/pdf |
