| article html file updated | 8 February 2020 21:17 CET | Update | https://www.mdpi.com/2078-2489/8/4/147 |
| article html file updated | 28 September 2019 12:06 CEST | Update | - |
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| article html file updated | 15 November 2017 11:36 CET | Original file | - |
| article xml uploaded. | 15 November 2017 11:35 CET | Update | https://www.mdpi.com/2078-2489/8/4/147/xml |
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| article pdf uploaded. | 15 November 2017 11:35 CET | Version of Record | https://www.mdpi.com/2078-2489/8/4/147/pdf |