| article html file updated | 9 February 2020 05:04 CET | Update | https://www.mdpi.com/1420-3049/23/2/308 |
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| article xml uploaded. | 31 January 2018 18:04 CET | Original file | https://www.mdpi.com/1420-3049/23/2/308/xml |
| article pdf uploaded. | 31 January 2018 18:04 CET | Version of Record | https://www.mdpi.com/1420-3049/23/2/308/pdf |