| article html file updated | 7 February 2020 07:22 CET | Update | https://www.mdpi.com/1424-8220/16/4/549 |
| article html file updated | 5 May 2019 18:26 CEST | Update | N/A |
| article html file updated | 27 March 2019 02:05 CET | Update | N/A |
| article html file updated | 29 April 2016 05:08 CEST | Update | N/A |
| article html file updated | 16 April 2016 07:34 CEST | Original file | N/A |
| article xml uploaded. | 16 April 2016 07:32 CEST | Original file | https://www.mdpi.com/1424-8220/16/4/549/xml |
| article pdf uploaded. | 16 April 2016 07:32 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/4/549/pdf |
