| article html file updated | 6 February 2020 02:17 CET | Update | https://www.mdpi.com/1420-3049/18/6/6230 |
| article html file updated | 19 September 2019 21:07 CEST | Update | N/A |
| article html file updated | 8 May 2019 04:47 CEST | Update | N/A |
| article html file updated | 20 March 2019 22:56 CET | Update | N/A |
| article html file updated | 17 September 2018 05:28 CEST | Original file | N/A |
| article pdf uploaded. | 24 May 2013 11:46 CEST | Version of Record | https://www.mdpi.com/1420-3049/18/6/6230/pdf |
