| article html file updated | 7 February 2020 13:08 CET | Update | https://www.mdpi.com/2077-0383/5/8/70 |
| article html file updated | 21 September 2019 22:44 CEST | Update | - |
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| article html file updated | 10 August 2016 13:51 CEST | Original file | - |
| article xml uploaded. | 10 August 2016 13:49 CEST | Original file | https://www.mdpi.com/2077-0383/5/8/70/xml |
| article pdf uploaded. | 10 August 2016 13:49 CEST | Version of Record | https://www.mdpi.com/2077-0383/5/8/70/pdf |
