| article html file updated | 8 February 2020 20:34 CET | Update | https://www.mdpi.com/2220-9964/6/11/351 |
| article html file updated | 28 September 2019 07:22 CEST | Update | - |
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| article html file updated | 30 November 2017 09:30 CET | Update | - |
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| article xml uploaded. | 7 November 2017 13:26 CET | Original file | https://www.mdpi.com/2220-9964/6/11/351/xml |
| article pdf uploaded. | 7 November 2017 13:26 CET | Version of Record | https://www.mdpi.com/2220-9964/6/11/351/pdf |
