| article html file updated | 8 February 2020 00:33 CET | Update | https://www.mdpi.com/1424-8220/17/3/489 |
| article html file updated | 23 September 2019 14:33 CEST | Update | N/A |
| article html file updated | 4 May 2019 08:45 CEST | Update | N/A |
| article html file updated | 31 March 2017 09:56 CEST | Update | N/A |
| article html file updated | 2 March 2017 07:08 CET | Original file | N/A |
| article xml uploaded. | 2 March 2017 07:07 CET | Original file | https://www.mdpi.com/1424-8220/17/3/489/xml |
| article pdf uploaded. | 2 March 2017 07:07 CET | Updated version of record | https://www.mdpi.com/1424-8220/17/3/489/pdf |
| article pdf uploaded. | 1 March 2017 12:16 CET | Version of Record | https://www.mdpi.com/1424-8220/17/3/489/pdf-vor |
