| article html file updated | 7 February 2020 20:17 CET | Update | https://www.mdpi.com/1420-3049/22/1/19 |
| article html file updated | 22 September 2019 15:08 CEST | Update | - |
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| article html file updated | 27 December 2016 11:16 CET | Original file | - |
| article xml uploaded. | 27 December 2016 10:48 CET | Update | https://www.mdpi.com/1420-3049/22/1/19/xml |
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| article xml uploaded. | 27 December 2016 10:48 CET | Update | - |
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| article pdf uploaded. | 27 December 2016 10:46 CET | Updated version of record | https://www.mdpi.com/1420-3049/22/1/19/pdf |
| article pdf uploaded. | 25 December 2016 06:44 CET | Version of Record | https://www.mdpi.com/1420-3049/22/1/19/pdf-vor |