| article html file updated | 7 February 2020 04:20 CET | Update | https://www.mdpi.com/2071-1050/8/2/149 |
| article html file updated | 6 May 2019 00:50 CEST | Update | N/A |
| article html file updated | 26 March 2019 20:15 CET | Original file | N/A |
| article pdf uploaded. | 5 February 2016 10:51 CET | Version of Record | https://www.mdpi.com/2071-1050/8/2/149/pdf |
| article xml uploaded. | 5 February 2016 10:51 CET | Original file | https://www.mdpi.com/2071-1050/8/2/149/xml |
