| article html file updated | 8 February 2020 09:26 CET | Update | https://www.mdpi.com/2072-6643/9/7/668 |
| article html file updated | 25 September 2019 14:29 CEST | Update | - |
| article html file updated | 3 May 2019 15:18 CEST | Update | - |
| article html file updated | 2 August 2017 04:03 CEST | Update | - |
| article html file updated | 28 June 2017 11:20 CEST | Update | - |
| article html file updated | 28 June 2017 04:53 CEST | Original file | - |
| article xml uploaded. | 27 June 2017 16:33 CEST | Original file | https://www.mdpi.com/2072-6643/9/7/668/xml |
| article pdf uploaded. | 27 June 2017 16:33 CEST | Version of Record | https://www.mdpi.com/2072-6643/9/7/668/pdf |
