| article html file updated | 7 February 2020 04:36 CET | Update | https://www.mdpi.com/1424-8220/16/2/234 |
| article html file updated | 6 May 2019 00:14 CEST | Update | - |
| article html file updated | 26 March 2019 20:49 CET | Original file | - |
| article pdf uploaded. | 16 February 2016 10:50 CET | Version of Record | https://www.mdpi.com/1424-8220/16/2/234/pdf |
| article xml uploaded. | 16 February 2016 10:50 CET | Original file | https://www.mdpi.com/1424-8220/16/2/234/xml |
