| article html file updated | 7 February 2020 12:49 CET | Update | https://www.mdpi.com/2079-8954/4/3/28 |
| article html file updated | 5 May 2019 08:02 CEST | Update | - |
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| article xml uploaded. | 4 August 2016 12:06 CEST | Update | https://www.mdpi.com/2079-8954/4/3/28/xml |
| article pdf uploaded. | 4 August 2016 12:06 CEST | Updated version of record | https://www.mdpi.com/2079-8954/4/3/28/pdf |
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