| article html file updated | 7 February 2020 01:27 CET | Update | https://www.mdpi.com/1996-1073/8/12/12381 |
| article html file updated | 6 May 2019 06:34 CEST | Update | - |
| article html file updated | 26 March 2019 15:12 CET | Original file | - |
| article pdf uploaded. | 30 November 2015 14:17 CET | Version of Record | https://www.mdpi.com/1996-1073/8/12/12381/pdf |
| article xml uploaded. | 30 November 2015 14:17 CET | Original file | https://www.mdpi.com/1996-1073/8/12/12381/xml |
