| article html file updated | 8 February 2020 06:41 CET | Update | https://www.mdpi.com/2072-6643/9/6/539 |
| article html file updated | 25 September 2019 00:13 CEST | Update | - |
| article html file updated | 3 May 2019 20:27 CEST | Update | - |
| article html file updated | 29 June 2017 11:41 CEST | Update | - |
| article html file updated | 13 June 2017 09:05 CEST | Update | - |
| article xml uploaded. | 13 June 2017 09:04 CEST | Update | https://www.mdpi.com/2072-6643/9/6/539/xml |
| article pdf uploaded. | 13 June 2017 09:04 CEST | Updated version of record | https://www.mdpi.com/2072-6643/9/6/539/pdf |
| article html file updated | 25 May 2017 15:16 CEST | Original file | - |
| article pdf uploaded. | 25 May 2017 15:14 CEST | Version of Record | https://www.mdpi.com/2072-6643/9/6/539/pdf-vor |
