| article html file updated | 7 February 2020 04:48 CET | Update | https://www.mdpi.com/1420-3049/21/2/240 |
| article html file updated | 21 September 2019 11:40 CEST | Update | - |
| article html file updated | 5 May 2019 23:47 CEST | Update | - |
| article html file updated | 26 March 2019 21:14 CET | Update | - |
| article html file updated | 17 September 2018 03:21 CEST | Original file | - |
| article pdf uploaded. | 20 February 2016 07:45 CET | Version of Record | https://www.mdpi.com/1420-3049/21/2/240/pdf |
| article xml uploaded. | 20 February 2016 07:45 CET | Original file | https://www.mdpi.com/1420-3049/21/2/240/xml |
