| article html file updated | 8 February 2020 02:08 CET | Update | https://www.mdpi.com/1424-8220/17/4/664 |
| article html file updated | 23 September 2019 23:42 CEST | Update | - |
| article html file updated | 4 May 2019 05:16 CEST | Update | - |
| article html file updated | 29 April 2017 13:27 CEST | Update | - |
| article html file updated | 27 March 2017 05:30 CEST | Update | - |
| article html file updated | 24 March 2017 05:19 CET | Update | - |
| article xml uploaded. | 24 March 2017 05:17 CET | Update | https://www.mdpi.com/1424-8220/17/4/664/xml |
| article pdf uploaded. | 24 March 2017 05:17 CET | Updated version of record | https://www.mdpi.com/1424-8220/17/4/664/pdf |
| article html file updated | 23 March 2017 13:13 CET | Original file | - |
| article pdf uploaded. | 23 March 2017 13:11 CET | Version of Record | https://www.mdpi.com/1424-8220/17/4/664/pdf-vor |
