| article html file updated | 29 August 2025 22:52 CEST | Update | https://www.mdpi.com/1420-3049/21/3/356 |
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| article html file updated | 31 March 2016 02:58 CEST | Original file | N/A |
| article xml uploaded. | 23 March 2016 06:58 CET | Update | https://www.mdpi.com/1420-3049/21/3/356/xml |
| article pdf uploaded. | 23 March 2016 06:58 CET | Updated version of record | https://www.mdpi.com/1420-3049/21/3/356/pdf |
| article pdf uploaded. | 21 March 2016 11:12 CET | Version of Record | https://www.mdpi.com/1420-3049/21/3/356/pdf-vor |