| article html file updated | 11 February 2020 14:20 CET | Update | https://www.mdpi.com/2073-445X/8/2/31 |
| article html file updated | 26 April 2019 20:07 CEST | Update | N/A |
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| article xml uploaded. | 7 February 2019 10:21 CET | Update | https://www.mdpi.com/2073-445X/8/2/31/xml |
| article pdf uploaded. | 7 February 2019 10:21 CET | Updated version of record | https://www.mdpi.com/2073-445X/8/2/31/pdf |
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