| article html file updated | 7 February 2020 06:31 CET | Update | https://www.mdpi.com/1424-8220/16/4/452 |
| article html file updated | 5 May 2019 20:11 CEST | Update | N/A |
| article html file updated | 27 March 2019 00:31 CET | Update | N/A |
| article html file updated | 29 April 2016 04:22 CEST | Update | N/A |
| article html file updated | 29 March 2016 09:39 CEST | Original file | N/A |
| article xml uploaded. | 29 March 2016 09:38 CEST | Original file | https://www.mdpi.com/1424-8220/16/4/452/xml |
| article pdf uploaded. | 29 March 2016 09:38 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/4/452/pdf |
