| article html file updated | 6 February 2020 17:33 CET | Update | https://www.mdpi.com/1424-8220/15/4/8481 |
| article html file updated | 6 May 2019 22:08 CEST | Update | N/A |
| article html file updated | 26 March 2019 00:29 CET | Update | N/A |
| article html file updated | 21 August 2015 10:19 CEST | Update | N/A |
| article html file updated | 12 May 2015 12:27 CEST | Original file | N/A |
| article xml file uploaded | 12 May 2015 12:27 CEST | Original file | https://www.mdpi.com/1424-8220/15/4/8481/xml |
| article pdf uploaded. | 14 April 2015 15:57 CEST | Updated version of record | https://www.mdpi.com/1424-8220/15/4/8481/pdf |
| article pdf uploaded. | 13 April 2015 13:56 CEST | Version of Record | https://www.mdpi.com/1424-8220/15/4/8481/pdf-vor |
