| article html file updated | 29 August 2025 22:43 CEST | Update | https://www.mdpi.com/2227-7072/4/1/3 |
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| article html file updated | 29 March 2016 07:21 CEST | Original file | N/A |
| article pdf uploaded. | 18 February 2016 08:40 CET | Version of Record | https://www.mdpi.com/2227-7072/4/1/3/pdf |
| article xml uploaded. | 18 February 2016 08:40 CET | Original file | https://www.mdpi.com/2227-7072/4/1/3/xml |
