| article html file updated | 7 February 2020 10:44 CET | Update | https://www.mdpi.com/2218-6581/5/3/12 |
| article html file updated | 5 May 2019 11:53 CEST | Update | - |
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| article html file updated | 28 September 2016 22:47 CEST | Update | - |
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| article xml uploaded. | 24 June 2016 15:23 CEST | Original file | https://www.mdpi.com/2218-6581/5/3/12/xml |
| article pdf uploaded. | 24 June 2016 15:23 CEST | Version of Record | https://www.mdpi.com/2218-6581/5/3/12/pdf |
