| article html file updated | 8 February 2020 06:48 CET | Update | https://www.mdpi.com/2076-3417/7/6/550 |
| article html file updated | 25 September 2019 00:53 CEST | Update | - |
| article html file updated | 3 May 2019 20:14 CEST | Update | - |
| article html file updated | 27 June 2017 09:30 CEST | Update | - |
| article html file updated | 26 May 2017 13:41 CEST | Original file | - |
| article xml uploaded. | 26 May 2017 13:40 CEST | Update | https://www.mdpi.com/2076-3417/7/6/550/xml |
| article pdf uploaded. | 26 May 2017 13:40 CEST | Version of Record | https://www.mdpi.com/2076-3417/7/6/550/pdf |
