| article html file updated | 8 February 2020 18:38 CET | Update | https://www.mdpi.com/2225-1146/5/4/45 |
| article html file updated | 2 May 2019 20:52 CEST | Update | - |
| article html file updated | 14 March 2018 10:18 CET | Update | - |
| article html file updated | 17 October 2017 23:03 CEST | Original file | - |
| article xml uploaded. | 17 October 2017 09:24 CEST | Original file | https://www.mdpi.com/2225-1146/5/4/45/xml |
| article pdf uploaded. | 17 October 2017 09:24 CEST | Version of Record | https://www.mdpi.com/2225-1146/5/4/45/pdf |
