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    9. **Stephen Wiesner (1970)**  
-   * Introduced the concepts of quantum cryptography and quantum money, making significant contributions to the development of secure communication systems. Wiesner's work laid the groundwork for the field of quantum cryptography.
+   * Introduced the concepts of [quantum cryptography]() and [quantum money](), making significant contributions to the development of secure communication systems. Wiesner's work laid the groundwork for the field of quantum cryptography.
 
    * **Quantum Money [Quantum Currency]()**