| article html file updated | 7 February 2020 01:39 CET | Update | https://www.mdpi.com/2071-1050/7/12/15799 |
| article html file updated | 6 May 2019 06:10 CEST | Update | N/A |
| article html file updated | 26 March 2019 15:32 CET | Original file | N/A |
| article pdf uploaded. | 2 December 2015 10:24 CET | Version of Record | https://www.mdpi.com/2071-1050/7/12/15799/pdf |
| article xml uploaded. | 2 December 2015 10:24 CET | Original file | https://www.mdpi.com/2071-1050/7/12/15799/xml |
