| article html file updated | 7 February 2020 03:11 CET | Update | https://www.mdpi.com/1099-4300/18/1/21 |
| article html file updated | 6 May 2019 03:02 CEST | Update | - |
| article html file updated | 26 March 2019 17:58 CET | Original file | - |
| article pdf uploaded. | 7 January 2016 16:16 CET | Version of Record | https://www.mdpi.com/1099-4300/18/1/21/pdf |
| article xml uploaded. | 7 January 2016 16:16 CET | Original file | https://www.mdpi.com/1099-4300/18/1/21/xml |
