| article html file updated | 6 February 2020 08:18 CET | Update | https://www.mdpi.com/1420-3049/19/4/3940 |
| article html file updated | 7 May 2019 16:31 CEST | Update | - |
| article html file updated | 21 March 2019 14:49 CET | Update | - |
| article html file updated | 12 September 2018 06:00 CEST | Update | - |
| article html file updated | 20 August 2015 01:55 CEST | Original file | - |
| article pdf uploaded. | 1 April 2014 13:48 CEST | Version of Record | https://www.mdpi.com/1420-3049/19/4/3940/pdf |
