| article html file updated | 8 February 2020 18:31 CET | Update | https://www.mdpi.com/2225-1146/5/4/46 |
| article html file updated | 2 May 2019 21:10 CEST | Update | - |
| article html file updated | 14 March 2018 10:18 CET | Update | - |
| article html file updated | 15 October 2017 22:48 CEST | Original file | - |
| article xml uploaded. | 15 October 2017 08:52 CEST | Original file | https://www.mdpi.com/2225-1146/5/4/46/xml |
| article pdf uploaded. | 15 October 2017 08:52 CEST | Version of Record | https://www.mdpi.com/2225-1146/5/4/46/pdf |
