| article html file updated | 6 February 2020 01:11 CET | Update | https://www.mdpi.com/1420-3049/18/4/3733 |
| article html file updated | 8 May 2019 07:00 CEST | Update | - |
| article html file updated | 20 March 2019 20:12 CET | Update | - |
| article html file updated | 17 September 2018 10:05 CEST | Original file | - |
| article pdf uploaded. | 25 March 2013 16:13 CET | Version of Record | https://www.mdpi.com/1420-3049/18/4/3733/pdf |
