| article html file updated | 6 February 2020 02:34 CET | Update | https://www.mdpi.com/1420-3049/18/6/6908 |
| article html file updated | 19 September 2019 21:39 CEST | Update | N/A |
| article html file updated | 8 May 2019 04:10 CEST | Update | N/A |
| article html file updated | 20 March 2019 23:40 CET | Update | N/A |
| article html file updated | 17 September 2018 06:06 CEST | Update | N/A |
| article html file updated | 28 February 2017 10:40 CET | Original file | N/A |
| article pdf uploaded. | 10 June 2013 11:36 CEST | Version of Record | https://www.mdpi.com/1420-3049/18/6/6908/pdf |
