| article html file updated | 8 February 2020 07:15 CET | Update | https://www.mdpi.com/2072-6694/9/6/62 |
| article html file updated | 25 September 2019 03:08 CEST | Update | - |
| article html file updated | 3 May 2019 19:23 CEST | Update | - |
| article html file updated | 27 June 2017 09:57 CEST | Update | - |
| article html file updated | 2 June 2017 08:56 CEST | Original file | - |
| article xml uploaded. | 2 June 2017 08:55 CEST | Original file | https://www.mdpi.com/2072-6694/9/6/62/xml |
| article pdf uploaded. | 2 June 2017 08:55 CEST | Version of Record | https://www.mdpi.com/2072-6694/9/6/62/pdf |
