| article html file updated | 8 February 2020 04:06 CET | Update | https://www.mdpi.com/2072-6643/9/4/416 |
| article html file updated | 24 September 2019 10:46 CEST | Update | - |
| article html file updated | 4 May 2019 01:14 CEST | Update | - |
| article html file updated | 28 April 2017 11:54 CEST | Update | - |
| article html file updated | 21 April 2017 15:01 CEST | Original file | - |
| article xml uploaded. | 21 April 2017 14:59 CEST | Original file | https://www.mdpi.com/2072-6643/9/4/416/xml |
| article pdf uploaded. | 21 April 2017 14:59 CEST | Version of Record | https://www.mdpi.com/2072-6643/9/4/416/pdf |
