| article html file updated | 8 February 2020 08:28 CET | Update | https://www.mdpi.com/2075-471X/6/2/7 |
| article html file updated | 3 May 2019 17:07 CEST | Update | - |
| article html file updated | 16 June 2017 12:02 CEST | Original file | - |
| article xml uploaded. | 16 June 2017 12:01 CEST | Original file | https://www.mdpi.com/2075-471X/6/2/7/xml |
| article pdf uploaded. | 16 June 2017 12:01 CEST | Version of Record | https://www.mdpi.com/2075-471X/6/2/7/pdf |
