| article html file updated | 6 February 2020 17:47 CET | Update | https://www.mdpi.com/1424-8220/15/4/9112 |
| article html file updated | 6 May 2019 21:43 CEST | Update | N/A |
| article html file updated | 26 March 2019 00:52 CET | Update | N/A |
| article html file updated | 21 August 2015 10:43 CEST | Update | N/A |
| article html file updated | 12 May 2015 12:30 CEST | Original file | N/A |
| article xml file uploaded | 12 May 2015 12:30 CEST | Original file | https://www.mdpi.com/1424-8220/15/4/9112/xml |
| article pdf uploaded. | 22 April 2015 12:04 CEST | Updated version of record | https://www.mdpi.com/1424-8220/15/4/9112/pdf |
| article pdf uploaded. | 17 April 2015 13:02 CEST | Version of Record | https://www.mdpi.com/1424-8220/15/4/9112/pdf-vor |
