| article html file updated | 7 February 2020 13:26 CET | Update | https://www.mdpi.com/2218-1989/6/3/25 |
| article html file updated | 5 May 2019 06:54 CEST | Update | - |
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| article html file updated | 29 September 2016 10:14 CEST | Update | - |
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| article xml uploaded. | 17 August 2016 10:37 CEST | Original file | https://www.mdpi.com/2218-1989/6/3/25/xml |
| article pdf uploaded. | 17 August 2016 10:37 CEST | Version of Record | https://www.mdpi.com/2218-1989/6/3/25/pdf |
