| article html file updated | 7 February 2020 04:49 CET | Update | https://www.mdpi.com/1424-8220/16/2/264 |
| article html file updated | 5 May 2019 23:45 CEST | Update | - |
| article html file updated | 26 March 2019 21:16 CET | Original file | - |
| article pdf uploaded. | 20 February 2016 13:15 CET | Version of Record | https://www.mdpi.com/1424-8220/16/2/264/pdf |
| article xml uploaded. | 20 February 2016 13:15 CET | Original file | https://www.mdpi.com/1424-8220/16/2/264/xml |
