| article html file updated | 6 February 2020 10:06 CET | Update | https://www.mdpi.com/2077-0383/3/2/614 |
| article html file updated | 20 September 2019 09:29 CEST | Update | N/A |
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| article pdf uploaded. | 19 June 2014 15:03 CEST | Version of Record | https://www.mdpi.com/2077-0383/3/2/614/pdf |