| article html file updated | 7 February 2020 19:01 CET | Update | https://new.mdpi.com/1420-3049/21/12/1661 |
| article html file updated | 22 September 2019 08:34 CEST | Update | - |
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| article xml uploaded. | 2 December 2016 11:58 CET | Original file | https://new.mdpi.com/1420-3049/21/12/1661/xml |
| article pdf uploaded. | 2 December 2016 11:58 CET | Version of Record | https://new.mdpi.com/1420-3049/21/12/1661/pdf |
