| article html file updated | 6 February 2020 01:25 CET | Update | https://www.mdpi.com/1420-3049/18/4/4170 |
| article html file updated | 19 September 2019 19:31 CEST | Update | - |
| article html file updated | 8 May 2019 06:28 CEST | Update | - |
| article html file updated | 20 March 2019 20:47 CET | Update | - |
| article html file updated | 17 September 2018 10:25 CEST | Update | - |
| article html file updated | 5 May 2016 08:01 CEST | Original file | - |
| article pdf uploaded. | 9 April 2013 10:52 CEST | Version of Record | https://www.mdpi.com/1420-3049/18/4/4170/pdf |
