| article html file updated | 8 February 2020 02:40 CET | Update | https://www.mdpi.com/1424-8220/17/4/736 |
| article html file updated | 24 September 2019 02:37 CEST | Update | - |
| article html file updated | 4 May 2019 04:08 CEST | Update | - |
| article html file updated | 29 April 2017 13:45 CEST | Update | - |
| article html file updated | 31 March 2017 15:53 CEST | Original file | - |
| article xml uploaded. | 31 March 2017 15:51 CEST | Original file | https://www.mdpi.com/1424-8220/17/4/736/xml |
| article pdf uploaded. | 31 March 2017 15:51 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/4/736/pdf |
