| article html file updated | 8 February 2020 11:15 CET | Update | https://www.mdpi.com/2311-5521/2/3/40 |
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| article xml uploaded. | 25 July 2017 02:34 CEST | Update | https://www.mdpi.com/2311-5521/2/3/40/xml |
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| article pdf uploaded. | 21 July 2017 14:41 CEST | Updated version of record | https://www.mdpi.com/2311-5521/2/3/40/pdf |
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| article pdf uploaded. | 17 July 2017 16:20 CEST | Updated version of record | https://www.mdpi.com/2311-5521/2/3/40/pdf-vor |
| article pdf uploaded. | 17 July 2017 15:15 CEST | Version of Record | https://www.mdpi.com/2311-5521/2/3/40/pdf-vor |
