| article html file updated | 6 February 2020 00:43 CET | Update | https://www.mdpi.com/1420-3049/18/3/2646 |
| article html file updated | 19 September 2019 18:18 CEST | Update | - |
| article html file updated | 8 May 2019 08:01 CEST | Update | - |
| article html file updated | 20 March 2019 19:04 CET | Update | - |
| article html file updated | 17 September 2018 05:40 CEST | Update | - |
| article html file updated | 17 June 2015 06:54 CEST | Original file | - |
| article pdf uploaded. | 27 February 2013 14:08 CET | Version of Record | https://www.mdpi.com/1420-3049/18/3/2646/pdf |
