| article html file updated | 8 February 2020 03:59 CET | Update | https://www.mdpi.com/2073-4441/9/4/289 |
| article html file updated | 24 September 2019 10:08 CEST | Update | - |
| article html file updated | 4 May 2019 01:28 CEST | Update | - |
| article html file updated | 28 April 2017 11:31 CEST | Update | - |
| article html file updated | 20 April 2017 11:37 CEST | Original file | - |
| article xml uploaded. | 20 April 2017 11:36 CEST | Original file | https://www.mdpi.com/2073-4441/9/4/289/xml |
| article pdf uploaded. | 20 April 2017 11:36 CEST | Version of Record | https://www.mdpi.com/2073-4441/9/4/289/pdf |
