| article html file updated | 7 February 2020 04:05 CET | Update | https://www.mdpi.com/1420-3049/21/2/148 |
| article html file updated | 6 May 2019 01:20 CEST | Update | - |
| article html file updated | 26 March 2019 19:45 CET | Update | - |
| article html file updated | 17 September 2018 02:53 CEST | Original file | - |
| article pdf uploaded. | 29 January 2016 13:09 CET | Version of Record | https://www.mdpi.com/1420-3049/21/2/148/pdf |
| article xml uploaded. | 29 January 2016 13:09 CET | Original file | https://www.mdpi.com/1420-3049/21/2/148/xml |
