| article html file updated | 7 February 2020 06:46 CET | Update | https://www.mdpi.com/1424-8220/16/4/470 |
| article html file updated | 5 May 2019 19:41 CEST | Update | N/A |
| article html file updated | 27 March 2019 00:56 CET | Update | N/A |
| article html file updated | 29 April 2016 04:30 CEST | Update | N/A |
| article html file updated | 1 April 2016 12:02 CEST | Original file | N/A |
| article xml uploaded. | 1 April 2016 12:00 CEST | Update | https://www.mdpi.com/1424-8220/16/4/470/xml |
| article pdf uploaded. | 1 April 2016 12:00 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/4/470/pdf |
