| article html file updated | 7 February 2020 06:58 CET | Update | https://www.mdpi.com/1420-3049/21/4/462 |
| article html file updated | 21 September 2019 14:41 CEST | Update | - |
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| article html file updated | 28 April 2016 11:45 CEST | Update | - |
| article html file updated | 7 April 2016 12:22 CEST | Original file | - |
| article xml uploaded. | 7 April 2016 12:20 CEST | Original file | https://www.mdpi.com/1420-3049/21/4/462/xml |
| article pdf uploaded. | 7 April 2016 12:20 CEST | Version of Record | https://www.mdpi.com/1420-3049/21/4/462/pdf |
