| article html file updated | 8 February 2020 14:43 CET | Update | https://www.mdpi.com/2227-9067/4/9/79 |
| article html file updated | 26 September 2019 19:32 CEST | Update | - |
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| article html file updated | 30 September 2017 10:18 CEST | Update | - |
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| article xml uploaded. | 28 August 2017 16:19 CEST | Original file | https://www.mdpi.com/2227-9067/4/9/79/xml |
| article pdf uploaded. | 28 August 2017 16:19 CEST | Version of Record | https://www.mdpi.com/2227-9067/4/9/79/pdf |
