| article html file updated | 8 February 2020 16:04 CET | Update | https://www.mdpi.com/1424-8220/17/9/2104 |
| article html file updated | 27 September 2019 02:50 CEST | Update | N/A |
| article html file updated | 3 May 2019 02:11 CEST | Update | N/A |
| article html file updated | 30 September 2017 15:02 CEST | Update | N/A |
| article html file updated | 14 September 2017 11:10 CEST | Original file | N/A |
| article xml uploaded. | 14 September 2017 11:09 CEST | Original file | https://www.mdpi.com/1424-8220/17/9/2104/xml |
| article pdf uploaded. | 14 September 2017 11:09 CEST | Updated version of record | https://www.mdpi.com/1424-8220/17/9/2104/pdf |
| article pdf uploaded. | 13 September 2017 12:06 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/9/2104/pdf-vor |
