| article html file updated | 7 February 2020 23:07 CET | Update | https://www.mdpi.com/2076-3417/7/2/171 |
| article html file updated | 23 September 2019 06:31 CEST | Update | - |
| article html file updated | 4 May 2019 11:46 CEST | Update | - |
| article html file updated | 1 March 2017 04:35 CET | Update | - |
| article html file updated | 17 February 2017 03:03 CET | Original file | - |
| article xml uploaded. | 17 February 2017 03:02 CET | Update | https://www.mdpi.com/2076-3417/7/2/171/xml |
| article xml uploaded. | 17 February 2017 03:02 CET | Original file | - |
| article pdf uploaded. | 17 February 2017 03:02 CET | Updated version of record | https://www.mdpi.com/2076-3417/7/2/171/pdf |
| article pdf uploaded. | 10 February 2017 15:56 CET | Version of Record | https://www.mdpi.com/2076-3417/7/2/171/pdf-vor |
