| article html file updated | 8 February 2020 03:58 CET | Update | https://www.mdpi.com/2227-7080/5/2/17 |
| article html file updated | 4 May 2019 01:29 CEST | Update | - |
| article html file updated | 29 June 2017 11:54 CEST | Update | - |
| article html file updated | 20 April 2017 11:15 CEST | Original file | - |
| article xml uploaded. | 20 April 2017 11:14 CEST | Original file | https://www.mdpi.com/2227-7080/5/2/17/xml |
| article pdf uploaded. | 20 April 2017 11:14 CEST | Version of Record | https://www.mdpi.com/2227-7080/5/2/17/pdf |
