| article html file updated | 8 February 2020 03:17 CET | Update | https://www.mdpi.com/2297-8739/4/2/14 |
| article html file updated | 24 September 2019 06:05 CEST | Update | - |
| article html file updated | 4 May 2019 02:47 CEST | Update | - |
| article html file updated | 30 June 2017 09:13 CEST | Update | - |
| article html file updated | 10 April 2017 12:25 CEST | Original file | - |
| article xml uploaded. | 10 April 2017 12:23 CEST | Update | https://www.mdpi.com/2297-8739/4/2/14/xml |
| article pdf uploaded. | 10 April 2017 12:23 CEST | Version of Record | https://www.mdpi.com/2297-8739/4/2/14/pdf |
