| article html file updated | 6 February 2020 01:26 CET | Update | https://www.mdpi.com/1420-3049/18/4/4209 |
| article html file updated | 19 September 2019 19:32 CEST | Update | - |
| article html file updated | 8 May 2019 06:26 CEST | Update | - |
| article html file updated | 20 March 2019 20:49 CET | Update | - |
| article html file updated | 17 September 2018 10:27 CEST | Original file | - |
| article pdf uploaded. | 10 April 2013 09:33 CEST | Version of Record | https://www.mdpi.com/1420-3049/18/4/4209/pdf |
