| article html file updated | 8 February 2020 10:02 CET | Update | https://www.mdpi.com/2076-0787/6/3/46 |
| article html file updated | 3 May 2019 14:08 CEST | Update | N/A |
| article html file updated | 4 July 2017 12:46 CEST | Original file | N/A |
| article xml uploaded. | 4 July 2017 12:45 CEST | Original file | https://www.mdpi.com/2076-0787/6/3/46/xml |
| article pdf uploaded. | 4 July 2017 12:45 CEST | Version of Record | https://www.mdpi.com/2076-0787/6/3/46/pdf |
