| article html file updated | 8 February 2020 06:34 CET | Update | https://www.mdpi.com/2076-3417/7/6/506 |
| article html file updated | 24 September 2019 23:39 CEST | Update | - |
| article html file updated | 3 May 2019 20:39 CEST | Update | - |
| article html file updated | 27 June 2017 09:25 CEST | Update | - |
| article html file updated | 24 May 2017 12:29 CEST | Original file | - |
| article xml uploaded. | 24 May 2017 12:27 CEST | Original file | https://www.mdpi.com/2076-3417/7/6/506/xml |
| article pdf uploaded. | 24 May 2017 12:27 CEST | Version of Record | https://www.mdpi.com/2076-3417/7/6/506/pdf |
