| article html file updated | 8 February 2020 04:07 CET | Update | https://www.mdpi.com/2073-4441/9/4/292 |
| article html file updated | 24 September 2019 10:52 CEST | Update | - |
| article html file updated | 4 May 2019 01:13 CEST | Update | - |
| article html file updated | 28 April 2017 11:32 CEST | Update | - |
| article html file updated | 26 April 2017 05:31 CEST | Original file | - |
| article xml uploaded. | 26 April 2017 05:30 CEST | Update | https://www.mdpi.com/2073-4441/9/4/292/xml |
| article pdf uploaded. | 26 April 2017 05:30 CEST | Updated version of record | https://www.mdpi.com/2073-4441/9/4/292/pdf |
| article pdf uploaded. | 21 April 2017 16:21 CEST | Version of Record | https://www.mdpi.com/2073-4441/9/4/292/pdf-vor |
