| article html file updated | 7 February 2020 20:03 CET | Update | https://www.mdpi.com/1420-3049/21/12/1751 |
| article html file updated | 4 May 2019 18:19 CEST | Update | N/A |
| article html file updated | 17 September 2018 13:42 CEST | Update | N/A |
| article html file updated | 27 December 2016 12:14 CET | Update | N/A |
| article html file updated | 21 December 2016 12:23 CET | Original file | N/A |
| article xml uploaded. | 21 December 2016 12:22 CET | Original file | https://www.mdpi.com/1420-3049/21/12/1751/xml |
| article pdf uploaded. | 21 December 2016 12:22 CET | Version of Record | https://www.mdpi.com/1420-3049/21/12/1751/pdf |
