| article html file updated | 8 February 2020 02:10 CET | Update | https://www.mdpi.com/1424-8220/17/4/674 |
| article html file updated | 23 September 2019 23:51 CEST | Update | - |
| article html file updated | 4 May 2019 05:12 CEST | Update | - |
| article html file updated | 29 April 2017 13:29 CEST | Update | - |
| article html file updated | 27 March 2017 05:31 CEST | Update | - |
| article html file updated | 26 March 2017 22:28 CEST | Update | - |
| article html file updated | 26 March 2017 06:14 CEST | Original file | - |
| article xml uploaded. | 26 March 2017 06:13 CEST | Original file | https://www.mdpi.com/1424-8220/17/4/674/xml |
| article pdf uploaded. | 26 March 2017 06:13 CEST | Updated version of record | https://www.mdpi.com/1424-8220/17/4/674/pdf |
| article pdf uploaded. | 24 March 2017 14:07 CET | Version of Record | https://www.mdpi.com/1424-8220/17/4/674/pdf-vor |
