| article html file updated | 7 February 2020 02:25 CET | Update | https://www.mdpi.com/1996-1073/8/12/12427 |
| article html file updated | 6 May 2019 04:37 CEST | Update | - |
| article html file updated | 26 March 2019 16:47 CET | Original file | - |
| article pdf uploaded. | 18 December 2015 13:28 CET | Version of Record | https://www.mdpi.com/1996-1073/8/12/12427/pdf |
| article xml uploaded. | 18 December 2015 13:28 CET | Original file | https://www.mdpi.com/1996-1073/8/12/12427/xml |
