| article html file updated | 8 February 2020 02:39 CET | Update | https://www.mdpi.com/1424-8220/17/4/733 |
| article html file updated | 24 September 2019 02:32 CEST | Update | N/A |
| article html file updated | 4 May 2019 04:10 CEST | Update | N/A |
| article html file updated | 29 April 2017 13:43 CEST | Update | N/A |
| article html file updated | 31 March 2017 11:25 CEST | Original file | N/A |
| article xml uploaded. | 31 March 2017 11:24 CEST | Original file | https://www.mdpi.com/1424-8220/17/4/733/xml |
| article pdf uploaded. | 31 March 2017 11:24 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/4/733/pdf |
