| article html file updated | 7 February 2020 18:13 CET | Update | https://www.mdpi.com/1424-2818/8/4/24 |
| article html file updated | 4 May 2019 22:08 CEST | Update | - |
| article html file updated | 29 December 2016 06:43 CET | Update | - |
| article html file updated | 18 November 2016 09:19 CET | Original file | - |
| article xml uploaded. | 18 November 2016 09:18 CET | Update | https://www.mdpi.com/1424-2818/8/4/24/xml |
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| article pdf uploaded. | 18 November 2016 09:18 CET | Version of Record | https://www.mdpi.com/1424-2818/8/4/24/pdf |
