| article html file updated | 8 February 2020 03:10 CET | Update | https://www.mdpi.com/2073-4433/8/4/74 |
| article html file updated | 24 September 2019 05:27 CEST | Update | - |
| article html file updated | 4 May 2019 03:02 CEST | Update | - |
| article html file updated | 28 April 2017 05:31 CEST | Update | - |
| article html file updated | 8 April 2017 11:08 CEST | Original file | - |
| article xml uploaded. | 8 April 2017 11:07 CEST | Original file | https://www.mdpi.com/2073-4433/8/4/74/xml |
| article pdf uploaded. | 8 April 2017 11:07 CEST | Version of Record | https://www.mdpi.com/2073-4433/8/4/74/pdf |
