| article html file updated | 9 February 2020 03:40 CET | Update | https://www.mdpi.com/2304-6732/5/1/2 |
| article html file updated | 2 May 2019 00:59 CEST | Update | N/A |
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| article xml uploaded. | 19 January 2018 17:32 CET | Original file | https://www.mdpi.com/2304-6732/5/1/2/xml |
| article pdf uploaded. | 19 January 2018 17:32 CET | Version of Record | https://www.mdpi.com/2304-6732/5/1/2/pdf |
