| article html file updated | 6 February 2020 17:47 CET | Update | https://www.mdpi.com/1996-1073/8/4/3093 |
| article html file updated | 6 May 2019 21:42 CEST | Update | N/A |
| article html file updated | 26 March 2019 00:53 CET | Update | N/A |
| article html file updated | 21 August 2015 10:44 CEST | Original file | N/A |
| article pdf uploaded. | 20 April 2015 10:20 CEST | Version of Record | https://www.mdpi.com/1996-1073/8/4/3093/pdf |
