| article html file updated | 7 February 2020 02:05 CET | Update | https://www.mdpi.com/1999-4907/6/12/4382 |
| article html file updated | 6 May 2019 05:15 CEST | Update | - |
| article html file updated | 26 March 2019 16:15 CET | Original file | - |
| article pdf uploaded. | 11 December 2015 09:56 CET | Version of Record | https://www.mdpi.com/1999-4907/6/12/4382/pdf |
| article xml uploaded. | 11 December 2015 09:56 CET | Original file | https://www.mdpi.com/1999-4907/6/12/4382/xml |
