| article html file updated | 7 February 2020 20:45 CET | Update | https://www.mdpi.com/2072-6643/9/1/32 |
| article html file updated | 22 September 2019 17:40 CEST | Update | - |
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| article html file updated | 7 February 2017 12:24 CET | Update | - |
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| article xml uploaded. | 4 January 2017 09:16 CET | Original file | https://www.mdpi.com/2072-6643/9/1/32/xml |
| article pdf uploaded. | 4 January 2017 09:16 CET | Version of Record | https://www.mdpi.com/2072-6643/9/1/32/pdf |
