| article html file updated | 8 February 2020 05:38 CET | Update | https://www.mdpi.com/2077-1444/8/5/91 |
| article html file updated | 3 May 2019 22:27 CEST | Update | - |
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| article html file updated | 11 May 2017 14:34 CEST | Original file | - |
| article xml uploaded. | 11 May 2017 14:33 CEST | Original file | https://www.mdpi.com/2077-1444/8/5/91/xml |
| article pdf uploaded. | 11 May 2017 14:33 CEST | Version of Record | https://www.mdpi.com/2077-1444/8/5/91/pdf |
