| article html file updated | 7 February 2020 06:35 CET | Update | https://www.mdpi.com/1424-8220/16/4/454 |
| article html file updated | 5 May 2019 20:04 CEST | Update | N/A |
| article html file updated | 27 March 2019 00:37 CET | Update | N/A |
| article html file updated | 29 April 2016 04:24 CEST | Update | N/A |
| article html file updated | 29 March 2016 15:48 CEST | Original file | N/A |
| article xml uploaded. | 29 March 2016 15:46 CEST | Update | https://www.mdpi.com/1424-8220/16/4/454/xml |
| article pdf uploaded. | 29 March 2016 15:46 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/4/454/pdf |
