| article html file updated | 7 February 2020 09:24 CET | Update | https://www.mdpi.com/1420-3049/21/6/699 |
| article html file updated | 5 May 2019 14:26 CEST | Update | - |
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| article html file updated | 27 May 2016 12:48 CEST | Original file | - |
| article xml uploaded. | 27 May 2016 11:43 CEST | Original file | https://www.mdpi.com/1420-3049/21/6/699/xml |
| article pdf uploaded. | 27 May 2016 11:43 CEST | Version of Record | https://www.mdpi.com/1420-3049/21/6/699/pdf |
