| article html file updated | 9 February 2020 03:57 CET | Update | https://www.mdpi.com/2073-4352/8/2/49 |
| article html file updated | 2 May 2019 00:23 CEST | Update | - |
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| article html file updated | 14 March 2018 08:59 CET | Update | - |
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| article xml uploaded. | 24 January 2018 07:20 CET | Update | https://www.mdpi.com/2073-4352/8/2/49/xml |
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| article pdf uploaded. | 24 January 2018 07:20 CET | Updated version of record | https://www.mdpi.com/2073-4352/8/2/49/pdf |
| article html file updated | 23 January 2018 08:02 CET | Update | - |
| article xml uploaded. | 23 January 2018 08:00 CET | Update | - |
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| article html file updated | 23 January 2018 04:44 CET | Original file | - |
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| article pdf uploaded. | 23 January 2018 04:43 CET | Version of Record | https://www.mdpi.com/2073-4352/8/2/49/pdf-vor |