| article html file updated | 8 February 2020 03:18 CET | Update | https://www.mdpi.com/2227-9059/5/2/15 |
| article html file updated | 24 September 2019 06:12 CEST | Update | - |
| article html file updated | 4 May 2019 02:45 CEST | Update | - |
| article html file updated | 29 June 2017 12:37 CEST | Update | - |
| article html file updated | 29 June 2017 11:16 CEST | Update | - |
| article html file updated | 11 April 2017 08:23 CEST | Original file | - |
| article xml uploaded. | 11 April 2017 08:22 CEST | Original file | https://www.mdpi.com/2227-9059/5/2/15/xml |
| article pdf uploaded. | 11 April 2017 08:22 CEST | Version of Record | https://www.mdpi.com/2227-9059/5/2/15/pdf |
