| article html file updated | 8 February 2020 15:22 CET | Update | https://www.mdpi.com/2076-3417/7/9/909 |
| article html file updated | 26 September 2019 23:06 CEST | Update | - |
| article html file updated | 3 May 2019 03:29 CEST | Update | - |
| article html file updated | 26 September 2017 12:35 CEST | Update | - |
| article html file updated | 5 September 2017 14:01 CEST | Original file | - |
| article xml uploaded. | 5 September 2017 14:00 CEST | Update | https://www.mdpi.com/2076-3417/7/9/909/xml |
| article xml uploaded. | 5 September 2017 14:00 CEST | Update | - |
| article xml uploaded. | 5 September 2017 14:00 CEST | Original file | - |
| article pdf uploaded. | 5 September 2017 14:00 CEST | Version of Record | https://www.mdpi.com/2076-3417/7/9/909/pdf |
