| article html file updated | 9 February 2020 01:39 CET | Update | https://www.mdpi.com/2076-3417/8/1/42 |
| article html file updated | 29 September 2019 14:18 CEST | Update | - |
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| article xml uploaded. | 1 January 2018 04:29 CET | Original file | https://www.mdpi.com/2076-3417/8/1/42/xml |
| article pdf uploaded. | 1 January 2018 04:29 CET | Version of Record | https://www.mdpi.com/2076-3417/8/1/42/pdf |
