| article html file updated | 8 February 2020 02:50 CET | Update | https://www.mdpi.com/2076-3417/7/4/440 |
| article html file updated | 24 September 2019 03:37 CEST | Update | - |
| article html file updated | 4 May 2019 03:45 CEST | Update | - |
| article html file updated | 28 April 2017 05:28 CEST | Update | - |
| article html file updated | 6 April 2017 14:08 CEST | Original file | - |
| article xml uploaded. | 6 April 2017 14:07 CEST | Update | https://www.mdpi.com/2076-3417/7/4/440/xml |
| article pdf uploaded. | 6 April 2017 14:07 CEST | Updated version of record | https://www.mdpi.com/2076-3417/7/4/440/pdf |
| article pdf uploaded. | 3 April 2017 09:15 CEST | Version of Record | https://www.mdpi.com/2076-3417/7/4/440/pdf-vor |
