| article html file updated | 8 February 2020 01:24 CET | Update | https://www.mdpi.com/2227-9091/5/1/18 |
| article html file updated | 23 September 2019 19:27 CEST | Update | - |
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| article html file updated | 29 March 2017 05:57 CEST | Update | - |
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| article xml uploaded. | 14 March 2017 09:31 CET | Original file | https://www.mdpi.com/2227-9091/5/1/18/xml |
| article pdf uploaded. | 14 March 2017 09:31 CET | Version of Record | https://www.mdpi.com/2227-9091/5/1/18/pdf |
