| article html file updated | 7 February 2020 22:29 CET | Update | https://www.mdpi.com/1424-8220/17/2/270 |
| article html file updated | 4 May 2019 13:04 CEST | Update | N/A |
| article html file updated | 2 March 2017 11:14 CET | Update | N/A |
| article html file updated | 13 February 2017 07:05 CET | Original file | N/A |
| article xml uploaded. | 13 February 2017 07:03 CET | Update | https://www.mdpi.com/1424-8220/17/2/270/xml |
| article xml uploaded. | 13 February 2017 07:03 CET | Original file | N/A |
| article pdf uploaded. | 13 February 2017 07:03 CET | Updated version of record | https://www.mdpi.com/1424-8220/17/2/270/pdf |
| article pdf uploaded. | 30 January 2017 14:55 CET | Version of Record | https://www.mdpi.com/1424-8220/17/2/270/pdf-vor |
