| article html file updated | 7 February 2020 03:20 CET | Update | https://www.mdpi.com/1420-3049/21/1/73 |
| article html file updated | 21 September 2019 09:31 CEST | Update | - |
| article html file updated | 6 May 2019 02:46 CEST | Update | - |
| article html file updated | 26 March 2019 18:15 CET | Update | - |
| article html file updated | 12 November 2018 04:20 CET | Original file | - |
| article pdf uploaded. | 12 January 2016 11:31 CET | Version of Record | https://www.mdpi.com/1420-3049/21/1/73/pdf |
| article xml uploaded. | 12 January 2016 11:31 CET | Original file | https://www.mdpi.com/1420-3049/21/1/73/xml |
