diff --git a/gtsam/base/Vector.h b/gtsam/base/Vector.h
index 576717a0c..bd72a0473 100644
--- a/gtsam/base/Vector.h
+++ b/gtsam/base/Vector.h
@@ -80,9 +80,6 @@ static_assert(
  * Numerically stable function for comparing if floating point values are equal
  * within epsilon tolerance.
  * Used for vector and matrix comparison with C++11 compatible functions.
- * References:
- * 1. https://randomascii.wordpress.com/2012/02/25/comparing-floating-point-numbers-2012-edition/
- * 2. https://floating-point-gui.de/errors/comparison/
  * Return true if two numbers are close wrt epsilon.
  */
 GTSAM_EXPORT bool fpEqual(double a, double b, double epsilon);