| article html file updated | 8 February 2020 04:10 CET | Update | https://www.mdpi.com/2076-3417/7/4/425 |
| article html file updated | 24 September 2019 11:08 CEST | Update | - |
| article html file updated | 4 May 2019 01:08 CEST | Update | - |
| article html file updated | 28 April 2017 05:26 CEST | Update | - |
| article html file updated | 22 April 2017 11:37 CEST | Original file | - |
| article xml uploaded. | 22 April 2017 11:36 CEST | Original file | https://www.mdpi.com/2076-3417/7/4/425/xml |
| article pdf uploaded. | 22 April 2017 11:36 CEST | Version of Record | https://www.mdpi.com/2076-3417/7/4/425/pdf |
