| article html file updated | 7 February 2020 07:19 CET | Update | https://www.mdpi.com/1424-8220/16/4/541 |
| article html file updated | 5 May 2019 18:32 CEST | Update | N/A |
| article html file updated | 27 March 2019 01:59 CET | Update | N/A |
| article html file updated | 29 April 2016 05:05 CEST | Update | N/A |
| article html file updated | 19 April 2016 04:24 CEST | Update | N/A |
| article xml uploaded. | 19 April 2016 04:23 CEST | Update | https://www.mdpi.com/1424-8220/16/4/541/xml |
| article pdf uploaded. | 15 April 2016 12:28 CEST | Updated version of record | https://www.mdpi.com/1424-8220/16/4/541/pdf |
| article html file updated | 15 April 2016 10:54 CEST | Original file | N/A |
| article pdf uploaded. | 15 April 2016 10:52 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/4/541/pdf-vor |
