| article html file updated | 6 February 2020 18:49 CET | Update | https://www.mdpi.com/2306-5710/1/2/82 |
| article html file updated | 6 May 2019 19:39 CEST | Update | N/A |
| article html file updated | 26 March 2019 03:02 CET | Update | N/A |
| article html file updated | 21 August 2015 12:23 CEST | Original file | N/A |
| article pdf uploaded. | 20 May 2015 13:58 CEST | Version of Record | https://www.mdpi.com/2306-5710/1/2/82/pdf |
