| article html file updated | 7 February 2020 13:44 CET | Update | https://www.mdpi.com/2079-4991/6/9/155 |
| article html file updated | 5 May 2019 06:23 CEST | Update | - |
| article html file updated | 27 March 2019 14:27 CET | Update | - |
| article html file updated | 27 September 2016 06:30 CEST | Update | - |
| article html file updated | 23 August 2016 13:40 CEST | Original file | - |
| article xml uploaded. | 23 August 2016 13:39 CEST | Original file | https://www.mdpi.com/2079-4991/6/9/155/xml |
| article pdf uploaded. | 23 August 2016 13:39 CEST | Version of Record | https://www.mdpi.com/2079-4991/6/9/155/pdf |
