| article html file updated | 6 February 2020 19:34 CET | Update | https://www.mdpi.com/1424-8220/15/6/13752 |
| article html file updated | 6 May 2019 18:00 CEST | Update | - |
| article html file updated | 26 March 2019 04:33 CET | Update | - |
| article html file updated | 21 August 2015 13:28 CEST | Update | - |
| article html file updated | 15 July 2015 05:37 CEST | Original file | - |
| article xml file uploaded | 15 July 2015 05:37 CEST | Original file | https://www.mdpi.com/1424-8220/15/6/13752/xml |
| article pdf uploaded. | 11 June 2015 11:36 CEST | Version of Record | https://www.mdpi.com/1424-8220/15/6/13752/pdf |
