| article html file updated | 7 February 2020 01:34 CET | Update | https://www.mdpi.com/2306-5710/1/4/329 |
| article html file updated | 21 September 2019 06:56 CEST | Update | - |
| article html file updated | 6 May 2019 06:19 CEST | Update | - |
| article html file updated | 26 March 2019 15:24 CET | Original file | - |
| article pdf uploaded. | 1 December 2015 13:45 CET | Version of Record | https://www.mdpi.com/2306-5710/1/4/329/pdf |
| article xml uploaded. | 1 December 2015 13:45 CET | Original file | https://www.mdpi.com/2306-5710/1/4/329/xml |
