| article html file updated | 6 February 2020 17:36 CET | Update | https://www.mdpi.com/1424-8220/15/4/8615 |
| article html file updated | 6 May 2019 22:03 CEST | Update | - |
| article html file updated | 26 March 2019 00:34 CET | Update | - |
| article html file updated | 21 August 2015 10:22 CEST | Update | - |
| article html file updated | 12 May 2015 12:28 CEST | Original file | - |
| article xml file uploaded | 12 May 2015 12:28 CEST | Original file | https://www.mdpi.com/1424-8220/15/4/8615/xml |
| article pdf uploaded. | 14 April 2015 13:07 CEST | Version of Record | https://www.mdpi.com/1424-8220/15/4/8615/pdf |
