| article html file updated | 9 February 2020 11:57 CET | Update | https://www.mdpi.com/2079-9292/7/4/46 |
| article html file updated | 2 October 2019 03:34 CEST | Update | N/A |
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| article xml uploaded. | 2 April 2018 06:01 CEST | Update | https://www.mdpi.com/2079-9292/7/4/46/xml |
| article pdf uploaded. | 2 April 2018 06:01 CEST | Updated version of record | https://www.mdpi.com/2079-9292/7/4/46/pdf |
| article html file updated | 30 March 2018 16:27 CEST | Original file | N/A |
| article pdf uploaded. | 30 March 2018 16:26 CEST | Version of Record | https://www.mdpi.com/2079-9292/7/4/46/pdf-vor |