| article html file updated | 8 February 2020 10:02 CET | Update | https://www.mdpi.com/2075-471X/6/3/8 |
| article html file updated | 3 May 2019 14:10 CEST | Update | N/A |
| article html file updated | 4 July 2017 13:33 CEST | Original file | N/A |
| article xml uploaded. | 4 July 2017 13:32 CEST | Original file | https://www.mdpi.com/2075-471X/6/3/8/xml |
| article pdf uploaded. | 4 July 2017 13:32 CEST | Version of Record | https://www.mdpi.com/2075-471X/6/3/8/pdf |
