| article html file updated | 7 February 2020 03:44 CET | Update | https://www.mdpi.com/1424-8220/16/1/139 |
| article html file updated | 6 May 2019 01:59 CEST | Update | - |
| article html file updated | 26 March 2019 19:04 CET | Original file | - |
| article pdf uploaded. | 21 January 2016 11:51 CET | Version of Record | https://www.mdpi.com/1424-8220/16/1/139/pdf |
| article xml uploaded. | 21 January 2016 11:51 CET | Original file | https://www.mdpi.com/1424-8220/16/1/139/xml |
