| article html file updated | 7 February 2020 02:06 CET | Update | https://www.mdpi.com/1999-4907/6/12/4383 |
| article html file updated | 6 May 2019 05:14 CEST | Update | - |
| article html file updated | 26 March 2019 16:16 CET | Original file | - |
| article pdf uploaded. | 11 December 2015 09:58 CET | Version of Record | https://www.mdpi.com/1999-4907/6/12/4383/pdf |
| article xml uploaded. | 11 December 2015 09:58 CET | Original file | https://www.mdpi.com/1999-4907/6/12/4383/xml |
