| article html file updated | 16 September 2021 05:43 CEST | Update | https://www.mdpi.com/2073-4344/8/1/3 |
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| article html file updated | 23 December 2017 12:59 CET | Original file | - |
| article xml uploaded. | 23 December 2017 12:58 CET | Original file | https://www.mdpi.com/2073-4344/8/1/3/xml |
| article pdf uploaded. | 23 December 2017 12:58 CET | Version of Record | https://www.mdpi.com/2073-4344/8/1/3/pdf |
