| article html file updated | 6 February 2020 07:06 CET | Update | https://www.mdpi.com/1420-3049/19/2/1775 |
| article html file updated | 20 September 2019 05:40 CEST | Update | - |
| article html file updated | 7 May 2019 18:57 CEST | Update | - |
| article html file updated | 21 March 2019 11:58 CET | Update | - |
| article html file updated | 12 September 2018 05:04 CEST | Update | - |
| article html file updated | 19 August 2015 19:35 CEST | Original file | - |
| article pdf uploaded. | 4 February 2014 10:19 CET | Version of Record | https://www.mdpi.com/1420-3049/19/2/1775/pdf |
