| article html file updated | 9 February 2020 10:42 CET | Update | https://www.mdpi.com/2218-1989/8/2/25 |
| article html file updated | 1 May 2019 09:55 CEST | Update | - |
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| article xml uploaded. | 21 March 2018 15:16 CET | Original file | https://www.mdpi.com/2218-1989/8/2/25/xml |
| article pdf uploaded. | 21 March 2018 15:16 CET | Version of Record | https://www.mdpi.com/2218-1989/8/2/25/pdf |
