| article html file updated | 7 February 2020 07:10 CET | Update | https://www.mdpi.com/1424-8220/16/4/525 |
| article html file updated | 5 May 2019 18:50 CEST | Update | N/A |
| article html file updated | 27 March 2019 01:42 CET | Update | N/A |
| article html file updated | 29 April 2016 04:57 CEST | Update | N/A |
| article html file updated | 12 April 2016 14:32 CEST | Original file | N/A |
| article xml uploaded. | 12 April 2016 14:31 CEST | Original file | https://www.mdpi.com/1424-8220/16/4/525/xml |
| article pdf uploaded. | 12 April 2016 14:31 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/4/525/pdf |
