| article html file updated | 7 February 2020 00:33 CET | Update | https://www.mdpi.com/1996-1073/8/11/12322 |
| article html file updated | 6 May 2019 07:48 CEST | Update | N/A |
| article html file updated | 26 March 2019 14:00 CET | Original file | N/A |
| article pdf uploaded. | 4 November 2015 09:44 CET | Version of Record | https://www.mdpi.com/1996-1073/8/11/12322/pdf |
