| article html file updated | 7 February 2020 14:38 CET | Update | https://www.mdpi.com/2072-6643/8/9/553 |
| article html file updated | 22 September 2019 00:35 CEST | Update | - |
| article html file updated | 5 May 2019 04:45 CEST | Update | - |
| article html file updated | 27 September 2016 11:38 CEST | Update | - |
| article html file updated | 8 September 2016 08:50 CEST | Original file | - |
| article xml uploaded. | 8 September 2016 08:49 CEST | Original file | https://www.mdpi.com/2072-6643/8/9/553/xml |
| article pdf uploaded. | 8 September 2016 08:49 CEST | Version of Record | https://www.mdpi.com/2072-6643/8/9/553/pdf |
