| article html file updated | 7 February 2020 22:42 CET | Update | https://www.mdpi.com/2227-9091/5/1/11 |
| article html file updated | 23 September 2019 04:04 CEST | Update | - |
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| article xml uploaded. | 5 February 2017 04:10 CET | Original file | https://www.mdpi.com/2227-9091/5/1/11/xml |
| article pdf uploaded. | 5 February 2017 04:10 CET | Version of Record | https://www.mdpi.com/2227-9091/5/1/11/pdf |
