| article html file updated | 7 February 2020 09:53 CET | Update | https://www.mdpi.com/2073-8994/8/6/44 |
| article html file updated | 21 September 2019 18:40 CEST | Update | - |
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| article html file updated | 1 July 2016 10:29 CEST | Update | - |
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| article xml uploaded. | 24 June 2016 03:57 CEST | Update | https://www.mdpi.com/2073-8994/8/6/44/xml |
| article pdf uploaded. | 24 June 2016 03:57 CEST | Updated version of record | https://www.mdpi.com/2073-8994/8/6/44/pdf |
| article html file updated | 16 June 2016 11:45 CEST | Update | - |
| article pdf uploaded. | 16 June 2016 11:44 CEST | Updated version of record | https://www.mdpi.com/2073-8994/8/6/44/pdf-vor |
| article html file updated | 16 June 2016 05:34 CEST | Update | - |
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| article html file updated | 8 June 2016 11:54 CEST | Update | - |
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| article html file updated | 8 June 2016 09:30 CEST | Original file | - |
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