| article html file updated | 8 February 2020 07:36 CET | Update | https://www.mdpi.com/2072-6694/9/6/65 |
| article html file updated | 25 September 2019 04:55 CEST | Update | - |
| article html file updated | 3 May 2019 18:44 CEST | Update | - |
| article html file updated | 27 June 2017 09:56 CEST | Update | - |
| article html file updated | 6 June 2017 12:38 CEST | Original file | - |
| article xml uploaded. | 6 June 2017 12:37 CEST | Update | https://www.mdpi.com/2072-6694/9/6/65/xml |
| article pdf uploaded. | 6 June 2017 12:37 CEST | Version of Record | https://www.mdpi.com/2072-6694/9/6/65/pdf |
