The-clock-synchronization-problem.md

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 Therefore, the localisation problem has 4 unknown parameters : the speed following the 3 axis of the reference frame, and the clock drift of the receptor. The question that arises is: **how to make sure those clocks are synchronized?**
 
-Sources :
-Calero, D., & Fernandez, E., & Parés, E. (2016) Positioning performance of Chip-Scale Atomic Clock GNSS augmentation systems. [https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=7849326](https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=7849326)
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+#### Sources :
+
+Calero, D., & Fernandez, E., & Parés, E. (2016) Positioning performance of Chip-Scale Atomic Clock GNSS augmentation systems. https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=7849326
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