| article html file updated | 7 February 2020 02:23 CET | Update | https://www.mdpi.com/1996-1073/8/12/12430 |
| article html file updated | 6 May 2019 04:39 CEST | Update | N/A |
| article html file updated | 26 March 2019 16:44 CET | Original file | N/A |
| article pdf uploaded. | 18 December 2015 08:19 CET | Version of Record | https://www.mdpi.com/1996-1073/8/12/12430/pdf |
| article xml uploaded. | 18 December 2015 08:19 CET | Original file | https://www.mdpi.com/1996-1073/8/12/12430/xml |
