| article html file updated | 8 February 2020 04:07 CET | Update | https://www.mdpi.com/2076-3417/7/4/423 |
| article html file updated | 24 September 2019 10:50 CEST | Update | - |
| article html file updated | 4 May 2019 01:13 CEST | Update | - |
| article html file updated | 28 April 2017 05:26 CEST | Update | - |
| article html file updated | 24 April 2017 13:37 CEST | Original file | - |
| article xml uploaded. | 24 April 2017 13:36 CEST | Original file | https://www.mdpi.com/2076-3417/7/4/423/xml |
| article pdf uploaded. | 24 April 2017 13:36 CEST | Updated version of record | https://www.mdpi.com/2076-3417/7/4/423/pdf |
| article pdf uploaded. | 21 April 2017 13:19 CEST | Version of Record | https://www.mdpi.com/2076-3417/7/4/423/pdf-vor |
