| article html file updated | 8 February 2020 04:31 CET | Update | https://www.mdpi.com/2297-8747/22/2/32 |
| article html file updated | 4 May 2019 00:30 CEST | Update | - |
| article html file updated | 27 April 2017 12:55 CEST | Original file | - |
| article xml uploaded. | 27 April 2017 12:53 CEST | Original file | https://www.mdpi.com/2297-8747/22/2/32/xml |
| article pdf uploaded. | 27 April 2017 12:53 CEST | Version of Record | https://www.mdpi.com/2297-8747/22/2/32/pdf |
