| article html file updated | 6 February 2020 18:57 CET | Update | https://www.mdpi.com/1424-8220/15/6/12103 |
| article html file updated | 6 May 2019 19:21 CEST | Update | - |
| article html file updated | 26 March 2019 03:20 CET | Update | - |
| article html file updated | 21 August 2015 12:34 CEST | Update | - |
| article html file updated | 15 July 2015 05:35 CEST | Original file | - |
| article xml file uploaded | 15 July 2015 05:35 CEST | Original file | https://www.mdpi.com/1424-8220/15/6/12103/xml |
| article pdf uploaded. | 9 June 2015 15:57 CEST | Updated version of record | https://www.mdpi.com/1424-8220/15/6/12103/pdf |
| article pdf uploaded. | 25 May 2015 11:16 CEST | Version of Record | https://www.mdpi.com/1424-8220/15/6/12103/pdf-vor |