| article html file updated | 8 February 2020 03:50 CET | Update | https://www.mdpi.com/2076-3417/7/4/409 |
| article html file updated | 24 September 2019 09:11 CEST | Update | - |
| article html file updated | 4 May 2019 01:45 CEST | Update | - |
| article html file updated | 28 April 2017 05:22 CEST | Update | - |
| article html file updated | 24 April 2017 13:16 CEST | Original file | - |
| article xml uploaded. | 24 April 2017 13:15 CEST | Original file | https://www.mdpi.com/2076-3417/7/4/409/xml |
| article pdf uploaded. | 24 April 2017 13:15 CEST | Updated version of record | https://www.mdpi.com/2076-3417/7/4/409/pdf |
| article pdf uploaded. | 18 April 2017 13:59 CEST | Version of Record | https://www.mdpi.com/2076-3417/7/4/409/pdf-vor |
