| article html file updated | 8 February 2020 04:43 CET | Update | https://new.mdpi.com/1424-8220/17/5/993 |
| article html file updated | 24 September 2019 14:01 CEST | Update | - |
| article html file updated | 4 May 2019 00:07 CEST | Update | - |
| article html file updated | 2 June 2017 04:06 CEST | Update | - |
| article html file updated | 2 May 2017 06:58 CEST | Original file | - |
| article xml uploaded. | 2 May 2017 06:56 CEST | Original file | https://new.mdpi.com/1424-8220/17/5/993/xml |
| article pdf uploaded. | 2 May 2017 06:56 CEST | Updated version of record | https://new.mdpi.com/1424-8220/17/5/993/pdf |
| article pdf uploaded. | 29 April 2017 12:23 CEST | Version of Record | https://new.mdpi.com/1424-8220/17/5/993/pdf-vor |
