| article html file updated | 8 February 2020 00:43 CET | Update | https://www.mdpi.com/1424-8220/17/3/509 |
| article html file updated | 23 September 2019 15:33 CEST | Update | N/A |
| article html file updated | 4 May 2019 08:21 CEST | Update | N/A |
| article html file updated | 31 March 2017 10:00 CEST | Update | N/A |
| article html file updated | 8 March 2017 09:51 CET | Original file | N/A |
| article xml uploaded. | 8 March 2017 09:50 CET | Update | https://www.mdpi.com/1424-8220/17/3/509/xml |
| article pdf uploaded. | 8 March 2017 09:50 CET | Updated version of record | https://www.mdpi.com/1424-8220/17/3/509/pdf |
| article pdf uploaded. | 3 March 2017 13:06 CET | Version of Record | https://www.mdpi.com/1424-8220/17/3/509/pdf-vor |
