| article html file updated | 8 February 2020 08:32 CET | Update | https://www.mdpi.com/2072-6643/9/6/619 |
| article html file updated | 25 September 2019 09:43 CEST | Update | - |
| article html file updated | 3 May 2019 16:59 CEST | Update | - |
| article html file updated | 29 June 2017 11:47 CEST | Update | - |
| article html file updated | 16 June 2017 14:35 CEST | Original file | - |
| article xml uploaded. | 16 June 2017 14:34 CEST | Original file | https://www.mdpi.com/2072-6643/9/6/619/xml |
| article pdf uploaded. | 16 June 2017 14:34 CEST | Version of Record | https://www.mdpi.com/2072-6643/9/6/619/pdf |
