| article html file updated | 6 February 2020 00:13 CET | Update | https://www.mdpi.com/1420-3049/18/2/1549 |
| article html file updated | 19 September 2019 17:24 CEST | Update | - |
| article html file updated | 8 May 2019 09:18 CEST | Update | - |
| article html file updated | 20 March 2019 17:46 CET | Update | - |
| article html file updated | 12 November 2018 02:55 CET | Original file | - |
| article pdf uploaded. | 25 January 2013 11:02 CET | Version of Record | https://www.mdpi.com/1420-3049/18/2/1549/pdf |
