| article html file updated | 7 February 2020 03:48 CET | Update | https://www.mdpi.com/1424-8220/16/2/145 |
| article html file updated | 6 May 2019 01:52 CEST | Update | - |
| article html file updated | 26 March 2019 19:11 CET | Original file | - |
| article pdf uploaded. | 23 January 2016 04:11 CET | Version of Record | https://www.mdpi.com/1424-8220/16/2/145/pdf |
| article xml uploaded. | 23 January 2016 04:11 CET | Original file | https://www.mdpi.com/1424-8220/16/2/145/xml |
