| article html file updated | 7 February 2020 04:22 CET | Update | https://www.mdpi.com/1424-8220/16/2/201 |
| article html file updated | 6 May 2019 00:47 CEST | Update | N/A |
| article html file updated | 26 March 2019 20:19 CET | Original file | N/A |
| article pdf uploaded. | 5 February 2016 11:48 CET | Version of Record | https://www.mdpi.com/1424-8220/16/2/201/pdf |
| article xml uploaded. | 5 February 2016 11:48 CET | Original file | https://www.mdpi.com/1424-8220/16/2/201/xml |
