| article html file updated | 7 February 2020 07:57 CET | Update | https://www.mdpi.com/2071-1050/8/5/420 |
| article html file updated | 5 May 2019 17:14 CEST | Update | - |
| article html file updated | 27 March 2019 03:18 CET | Update | - |
| article html file updated | 27 May 2016 11:28 CEST | Update | - |
| article html file updated | 28 April 2016 13:39 CEST | Original file | - |
| article xml uploaded. | 28 April 2016 12:35 CEST | Update | https://www.mdpi.com/2071-1050/8/5/420/xml |
| article pdf uploaded. | 28 April 2016 12:35 CEST | Version of Record | https://www.mdpi.com/2071-1050/8/5/420/pdf |
