| article html file updated | 8 February 2020 06:46 CET | Update | https://www.mdpi.com/2227-9040/5/2/17 |
| article html file updated | 3 May 2019 20:17 CEST | Update | - |
| article html file updated | 28 June 2017 12:52 CEST | Update | - |
| article html file updated | 26 May 2017 13:54 CEST | Original file | - |
| article xml uploaded. | 26 May 2017 13:53 CEST | Update | https://www.mdpi.com/2227-9040/5/2/17/xml |
| article pdf uploaded. | 26 May 2017 13:53 CEST | Version of Record | https://www.mdpi.com/2227-9040/5/2/17/pdf |
