| article html file updated | 6 February 2020 17:06 CET | Update | https://www.mdpi.com/1424-8220/15/4/7728 |
| article html file updated | 6 May 2019 22:55 CEST | Update | - |
| article html file updated | 25 March 2019 23:45 CET | Update | - |
| article html file updated | 21 August 2015 09:34 CEST | Update | - |
| article html file updated | 12 May 2015 12:23 CEST | Original file | - |
| article xml file uploaded | 12 May 2015 12:23 CEST | Original file | https://www.mdpi.com/1424-8220/15/4/7728/xml |
| article pdf uploaded. | 17 April 2015 08:39 CEST | Updated version of record | https://www.mdpi.com/1424-8220/15/4/7728/pdf |
| article pdf uploaded. | 30 March 2015 10:36 CEST | Version of Record | https://www.mdpi.com/1424-8220/15/4/7728/pdf-vor |
