| article html file updated | 24 December 2025 13:51 CET | Update | https://www.mdpi.com/1422-0067/17/1/52 |
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| article pdf uploaded. | 31 December 2015 13:01 CET | Version of Record | https://www.mdpi.com/1422-0067/17/1/52/pdf |
| article xml uploaded. | 31 December 2015 13:01 CET | Original file | https://www.mdpi.com/1422-0067/17/1/52/xml |
