| article html file updated | 7 February 2020 21:50 CET | Update | https://www.mdpi.com/2075-4701/7/1/29 |
| article html file updated | 22 September 2019 23:28 CEST | Update | - |
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| article html file updated | 7 February 2017 09:40 CET | Update | - |
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| article xml uploaded. | 20 January 2017 14:31 CET | Original file | https://www.mdpi.com/2075-4701/7/1/29/xml |
| article pdf uploaded. | 20 January 2017 14:31 CET | Version of Record | https://www.mdpi.com/2075-4701/7/1/29/pdf |
