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@@ -112,7 +112,7 @@ However, you should be able to implement the advertisements on other devices tha
 
 ## References
 
-- Alexander Heinrich, Milan Stute, Tim Kornhuber, Matthias Hollick. **Who Can _Find My_ Devices? Security and Privacy of Apple's Crowd-Sourced Bluetooth Location Tracking System.** _Proceedings on Privacy Enhancing Technologies (PoPETs)_, 2021.
+- Alexander Heinrich, Milan Stute, Tim Kornhuber, Matthias Hollick. **Who Can _Find My_ Devices? Security and Privacy of Apple's Crowd-Sourced Bluetooth Location Tracking System.** _Proceedings on Privacy Enhancing Technologies (PoPETs)_, 2021. [📄 Preprint](https://arxiv.org/abs/2103.02282).
 - Tim Kornhuber. **Analysis of Apple's Crowd-Sourced Location Tracking System.** _Technical University of Darmstadt_, Master's thesis, 2020.
 - Apple Inc. **Find My Network Accessory Specification – Developer Preview – Release R3.** 2020. [📄 Download](https://developer.apple.com/find-my/).