| article html file updated | 7 February 2020 23:30 CET | Update | https://www.mdpi.com/2076-0760/6/1/16 |
| article html file updated | 4 May 2019 11:02 CEST | Update | - |
| article html file updated | 16 February 2017 04:34 CET | Original file | - |
| article xml uploaded. | 16 February 2017 04:32 CET | Original file | https://www.mdpi.com/2076-0760/6/1/16/xml |
| article pdf uploaded. | 16 February 2017 04:32 CET | Version of Record | https://www.mdpi.com/2076-0760/6/1/16/pdf |
