| article html file updated | 7 February 2020 17:45 CET | Update | https://www.mdpi.com/1420-3049/21/11/1504 |
| article html file updated | 22 September 2019 05:10 CEST | Update | - |
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| article xml uploaded. | 14 November 2016 10:55 CET | Update | https://www.mdpi.com/1420-3049/21/11/1504/xml |
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| article pdf uploaded. | 14 November 2016 10:55 CET | Updated version of record | https://www.mdpi.com/1420-3049/21/11/1504/pdf |
| article html file updated | 9 November 2016 11:30 CET | Original file | - |
| article xml uploaded. | 9 November 2016 11:29 CET | Update | - |
| article xml uploaded. | 9 November 2016 11:29 CET | Update | - |
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| article pdf uploaded. | 9 November 2016 11:29 CET | Version of Record | https://www.mdpi.com/1420-3049/21/11/1504/pdf-vor |