| article html file updated | 8 February 2020 08:22 CET | Update | https://www.mdpi.com/2072-6643/9/6/611 |
| article html file updated | 25 September 2019 08:51 CEST | Update | N/A |
| article html file updated | 3 May 2019 17:19 CEST | Update | N/A |
| article html file updated | 29 June 2017 11:47 CEST | Update | N/A |
| article html file updated | 15 June 2017 11:54 CEST | Original file | N/A |
| article xml uploaded. | 15 June 2017 11:53 CEST | Original file | https://www.mdpi.com/2072-6643/9/6/611/xml |
| article pdf uploaded. | 15 June 2017 11:53 CEST | Version of Record | https://www.mdpi.com/2072-6643/9/6/611/pdf |
