| article html file updated | 7 February 2020 03:14 CET | Update | https://www.mdpi.com/1420-3049/21/1/69 |
| article html file updated | 21 September 2019 09:22 CEST | Update | - |
| article html file updated | 6 May 2019 02:57 CEST | Update | - |
| article html file updated | 26 March 2019 18:04 CET | Update | - |
| article html file updated | 12 November 2018 04:19 CET | Original file | - |
| article pdf uploaded. | 9 January 2016 06:47 CET | Version of Record | https://www.mdpi.com/1420-3049/21/1/69/pdf |
| article xml uploaded. | 9 January 2016 06:47 CET | Original file | https://www.mdpi.com/1420-3049/21/1/69/xml |
