| article html file updated | 6 February 2020 04:14 CET | Update | https://www.mdpi.com/1422-0067/14/9/18488 |
| article html file updated | 20 September 2019 00:46 CEST | Update | N/A |
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| article pdf uploaded. | 6 September 2013 12:23 CEST | Version of Record | https://www.mdpi.com/1422-0067/14/9/18488/pdf |