| article html file updated | 16 July 2022 10:22 CEST | Update | https://www.mdpi.com/1660-4601/15/4/640 |
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| article xml uploaded. | 5 April 2018 12:36 CEST | Update | https://www.mdpi.com/1660-4601/15/4/640/xml |
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| article pdf uploaded. | 4 April 2018 15:54 CEST | Updated version of record | https://www.mdpi.com/1660-4601/15/4/640/pdf |
| article html file updated | 30 March 2018 16:47 CEST | Original file | - |
| article pdf uploaded. | 30 March 2018 16:46 CEST | Version of Record | https://www.mdpi.com/1660-4601/15/4/640/pdf-vor |
