| article html file updated | 7 February 2020 20:22 CET | Update | https://www.mdpi.com/1996-1073/10/1/26 |
| article html file updated | 22 September 2019 15:35 CEST | Update | - |
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| article xml uploaded. | 27 December 2016 10:47 CET | Original file | https://www.mdpi.com/1996-1073/10/1/26/xml |
| article pdf uploaded. | 27 December 2016 10:47 CET | Version of Record | https://www.mdpi.com/1996-1073/10/1/26/pdf |
