| article html file updated | 7 February 2020 01:35 CET | Update | https://www.mdpi.com/2077-1312/3/4/1474 |
| article html file updated | 6 May 2019 06:18 CEST | Update | - |
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| article xml uploaded. | 1 December 2015 12:08 CET | Original file | https://www.mdpi.com/2077-1312/3/4/1474/xml |
| article pdf uploaded. | 1 December 2015 12:08 CET | Version of Record | https://www.mdpi.com/2077-1312/3/4/1474/pdf |
