| article html file updated | 7 February 2020 04:43 CET | Update | https://www.mdpi.com/1420-3049/21/2/229 |
| article html file updated | 21 September 2019 11:32 CEST | Update | - |
| article html file updated | 5 May 2019 23:59 CEST | Update | - |
| article html file updated | 26 March 2019 21:02 CET | Update | - |
| article html file updated | 17 September 2018 03:19 CEST | Original file | - |
| article pdf uploaded. | 18 February 2016 11:11 CET | Version of Record | https://www.mdpi.com/1420-3049/21/2/229/pdf |
| article xml uploaded. | 18 February 2016 11:11 CET | Original file | https://www.mdpi.com/1420-3049/21/2/229/xml |
