| article html file updated | 8 February 2020 03:19 CET | Update | https://www.mdpi.com/2072-6643/9/4/375 |
| article html file updated | 24 September 2019 06:19 CEST | Update | - |
| article html file updated | 4 May 2019 02:42 CEST | Update | - |
| article html file updated | 28 April 2017 11:50 CEST | Update | - |
| article html file updated | 11 April 2017 12:13 CEST | Original file | - |
| article xml uploaded. | 11 April 2017 12:12 CEST | Original file | https://www.mdpi.com/2072-6643/9/4/375/xml |
| article pdf uploaded. | 11 April 2017 12:12 CEST | Version of Record | https://www.mdpi.com/2072-6643/9/4/375/pdf |
