| article html file updated | 7 February 2020 05:44 CET | Update | https://www.mdpi.com/2071-1050/8/3/260 |
| article html file updated | 5 May 2019 21:50 CEST | Update | - |
| article html file updated | 26 March 2019 23:08 CET | Update | - |
| article html file updated | 31 March 2016 08:43 CEST | Original file | - |
| article pdf uploaded. | 10 March 2016 11:31 CET | Version of Record | https://www.mdpi.com/2071-1050/8/3/260/pdf |
| article xml uploaded. | 10 March 2016 11:31 CET | Original file | https://www.mdpi.com/2071-1050/8/3/260/xml |
