| article html file updated | 7 February 2020 01:55 CET | Update | https://www.mdpi.com/1999-4893/8/4/1143 |
| article html file updated | 6 May 2019 05:37 CEST | Update | - |
| article html file updated | 26 March 2019 15:58 CET | Original file | - |
| article pdf uploaded. | 8 December 2015 09:26 CET | Version of Record | https://www.mdpi.com/1999-4893/8/4/1143/pdf |
| article xml uploaded. | 8 December 2015 09:26 CET | Original file | https://www.mdpi.com/1999-4893/8/4/1143/xml |
