| article html file updated | 8 February 2020 03:33 CET | Update | https://www.mdpi.com/1424-8220/17/4/855 |
| article html file updated | 24 September 2019 07:31 CEST | Update | N/A |
| article html file updated | 4 May 2019 02:17 CEST | Update | N/A |
| article html file updated | 29 April 2017 14:11 CEST | Update | N/A |
| article html file updated | 14 April 2017 05:44 CEST | Original file | N/A |
| article xml uploaded. | 14 April 2017 05:43 CEST | Original file | https://www.mdpi.com/1424-8220/17/4/855/xml |
| article pdf uploaded. | 14 April 2017 05:43 CEST | Updated version of record | https://www.mdpi.com/1424-8220/17/4/855/pdf |
