| article html file updated | 8 February 2020 07:04 CET | Update | https://www.mdpi.com/2072-6643/9/6/559 |
| article html file updated | 25 September 2019 02:14 CEST | Update | - |
| article html file updated | 3 May 2019 19:44 CEST | Update | - |
| article html file updated | 29 June 2017 11:42 CEST | Update | - |
| article html file updated | 1 June 2017 05:17 CEST | Original file | - |
| article xml uploaded. | 1 June 2017 05:16 CEST | Original file | https://www.mdpi.com/2072-6643/9/6/559/xml |
| article pdf uploaded. | 1 June 2017 05:16 CEST | Updated version of record | https://www.mdpi.com/2072-6643/9/6/559/pdf |
| article pdf uploaded. | 31 May 2017 11:26 CEST | Version of Record | https://www.mdpi.com/2072-6643/9/6/559/pdf-vor |
