| article html file updated | 8 February 2020 06:39 CET | Update | https://www.mdpi.com/2076-3417/7/6/538 |
| article html file updated | 25 September 2019 00:05 CEST | Update | - |
| article html file updated | 3 May 2019 20:30 CEST | Update | - |
| article html file updated | 27 June 2017 09:27 CEST | Update | - |
| article html file updated | 24 May 2017 16:12 CEST | Original file | - |
| article xml uploaded. | 24 May 2017 16:11 CEST | Update | https://www.mdpi.com/2076-3417/7/6/538/xml |
| article pdf uploaded. | 24 May 2017 16:11 CEST | Version of Record | https://www.mdpi.com/2076-3417/7/6/538/pdf |
