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| article html file updated | 16 July 2022 22:55 CEST | Update | N/A |
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| article xml uploaded. | 11 July 2018 11:32 CEST | Update | https://www.mdpi.com/2227-9032/6/3/77/xml |
| article pdf uploaded. | 11 July 2018 11:32 CEST | Updated version of record | https://www.mdpi.com/2227-9032/6/3/77/pdf |
| article html file updated | 11 July 2018 07:15 CEST | Update | N/A |
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| article xml file uploaded | 11 July 2018 07:14 CEST | Update | N/A |
| article html file updated | 10 July 2018 14:11 CEST | Original file | N/A |
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| article pdf uploaded. | 9 July 2018 17:03 CEST | Updated version of record | https://www.mdpi.com/2227-9032/6/3/77/pdf-vor |
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