| article html file updated | 7 February 2020 13:02 CET | Update | https://www.mdpi.com/2073-4352/6/8/91 |
| article html file updated | 5 May 2019 07:39 CEST | Update | - |
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| article html file updated | 25 August 2016 11:46 CEST | Update | - |
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| article html file updated | 9 August 2016 08:59 CEST | Original file | - |
| article xml uploaded. | 9 August 2016 08:58 CEST | Update | https://www.mdpi.com/2073-4352/6/8/91/xml |
| article pdf uploaded. | 9 August 2016 08:58 CEST | Version of Record | https://www.mdpi.com/2073-4352/6/8/91/pdf |
