diff --git a/doc/references.rst b/doc/references.rst
index bb4f49e..1a2a6ad 100644
--- a/doc/references.rst
+++ b/doc/references.rst
@@ -1,16 +1,56 @@
 References
 ==========
 
-.. [Ahrens2012] Ahrens, J., *Analytic Methods of Sound Field Synthesis*. (Springer, Berlin Heidelberg, 2012), doi:`10.1007/978-3-642-25743-8 <https://doi.org/10.1007/978-3-642-25743-8>`__
+.. [Ahrens2012]
+    Ahrens, J.,
+    *Analytic Methods of Sound Field Synthesis*.
+    (Springer, Berlin Heidelberg, 2012),
+    doi:`10.1007/978-3-642-25743-8 <https://doi.org/10.1007/978-3-642-25743-8>`__
 
-.. [Moser2012] Möser, M., *Technische Akustik*. (Springer, Berlin Heidelberg, 2012), doi:`10.1007/978-3-642-30933-5 <https://doi.org/10.1007/978-3-642-30933-5>`__
+.. [Moser2012]
+    Möser, M.,
+    *Technische Akustik*.
+    (Springer, Berlin Heidelberg, 2012),
+    doi:`10.1007/978-3-642-30933-5 <https://doi.org/10.1007/978-3-642-30933-5>`__
 
-.. [SporsAhrens2010] Spors, S., Ahrens, J., “Analysis and Improvement of Pre-equalization in 2.5-dimensional Wave Field Synthesis,” in *128th Conv. Audio Eng. Soc.*, London, UK (2010), Paper 8121, `pdf <https://www.int.uni-rostock.de/fileadmin/user_upload/publications/spors/2010/AES128_Spors_etal_WFS_preeq.pdf>`__
+.. [SporsAhrens2010]
+    Spors, S., Ahrens, J.,
+    “Analysis and Improvement of Pre-equalization in 2.5-dimensional Wave Field Synthesis,”
+    in *128th Conv. Audio Eng. Soc.*, London, UK (2010), Paper 8121,
+    `pdf <https://www.int.uni-rostock.de/fileadmin/user_upload/publications/spors/2010/AES128_Spors_etal_WFS_preeq.pdf>`__
 
-.. [SporsAhrens2009] Spors, S., Ahrens, J., “Spatial Sampling Artifacts of Wave Field Synthesis for the Reproduction of Virtual Point Sources,” in *126th Conv. Audio Eng. Soc.*, Munich, Germany (2009), Paper 7744, `pdf <https://www.int.uni-rostock.de/fileadmin/user_upload/publications/spors/2009/AES126_Spors_etal_WFS_spatial_aliasing.pdf>`__
+.. [SporsAhrens2009]
+    Spors, S., Ahrens, J.,
+    “Spatial Sampling Artifacts of Wave Field Synthesis for the Reproduction of Virtual Point Sources,”
+    in *126th Conv. Audio Eng. Soc.*, Munich, Germany (2009), Paper 7744,
+    `pdf <https://www.int.uni-rostock.de/fileadmin/user_upload/publications/spors/2009/AES126_Spors_etal_WFS_spatial_aliasing.pdf>`__
 
-.. [Spors2016] Spors, S., Schultz, F., Rettberg, T., “Improved Driving Functions for Rectangular Loudspeaker Arrays Driven by Sound Field Synthesis,” in *42nd Ger. Ann. Conf. Acoust. (DAGA)*, Aachen, Germany (2016), `pdf <https://www.int.uni-rostock.de/fileadmin/user_upload/publications/spors/2016/Spors_etal_DAGA_SFS_rect_array.pdf>`__
+.. [Spors2016]
+    Spors, S., Schultz, F., Rettberg, T.,
+    “Improved Driving Functions for Rectangular Loudspeaker Arrays Driven by Sound Field Synthesis,”
+    in *42nd Ger. Ann. Conf. Acoust. (DAGA)*, Aachen, Germany (2016),
+    `pdf <https://www.int.uni-rostock.de/fileadmin/user_upload/publications/spors/2016/Spors_etal_DAGA_SFS_rect_array.pdf>`__
 
-.. [Spors2008] Spors, S., Rabenstein, R., and Ahrens, J., “The Theory of Wave Field Synthesis Revisited,” in *124th Conv. Audio Eng. Soc.*, Amsterdam, Netherlands (2008), preprint 7358, `pdf <https://www.int.uni-rostock.de/fileadmin/user_upload/publications/spors/2008/AES124_Spors_WFS_Theory.pdf>`__
+.. [Spors2008]
+    Spors, S., Rabenstein, R., and Ahrens, J.,
+    “The Theory of Wave Field Synthesis Revisited,”
+    in *124th Conv. Audio Eng. Soc.*, Amsterdam, Netherlands (2008), Paper 7358,
+    `pdf <https://www.int.uni-rostock.de/fileadmin/user_upload/publications/spors/2008/AES124_Spors_WFS_Theory.pdf>`__
 
-.. [Wierstorf2014] Wierstorf, H., *Perceptual Assessment of Sound Field Synthesis*, Ph.D. dissertation, Technische Universität Berlin, Berlin, Germany, 2014, doi:`10.14279/depositonce-4310 <http://dx.doi.org/10.14279/depositonce-4310>`__
+.. [Wierstorf2014]
+    Wierstorf, H.,
+    *Perceptual Assessment of Sound Field Synthesis*,
+    Ph.D. dissertation, Technische Universität Berlin, Berlin, Germany, 2014,
+    doi:`10.14279/depositonce-4310 <http://dx.doi.org/10.14279/depositonce-4310>`__
+
+.. [AllenBerkley1979]
+    Allen, J. B., Berkley, D. A.,
+    “Image method for efficiently simulating small‐room acoustics,”
+    J. Acoust. Soc. Am. **65**, 943-950 (1979),
+    doi:`10.1121/1.382599 <https://doi.org/10.1121/1.382599>`__
+
+.. [Borish1984]
+    Borish, J.,
+    “Extension of the image model to arbitrary polyhedra,”
+    J. Acoust. Soc. Am. **75**, 1827-1836 (1984),
+    doi:`10.1121/1.390983 <https://doi.org/10.1121/1.390983>`__
diff --git a/sfs/util.py b/sfs/util.py
index a712ca1..a3444a8 100644
--- a/sfs/util.py
+++ b/sfs/util.py
@@ -421,7 +421,7 @@ def apply(self, func, *args, **kwargs):
 def image_sources_for_box(x, L, N, prune=True):
     """Image source method for a cuboid room.
 
-    The classical method by Allen & Berkley [1]_.
+    The classical method by [AllenBerkley1979]_.
 
     Parameters
     ----------
@@ -443,7 +443,7 @@ def image_sources_for_box(x, L, N, prune=True):
           Returns reflected up to N times between individual wall pairs,
           a total number of :math:`M := (2N+1)^D`.
           This larger set is useful e.g. to select image sources based on
-          distance to listener, as suggested by Borish [2]_.
+          distance to listener, as suggested by [Borish1984]_.
 
 
     Returns
@@ -453,17 +453,6 @@ def image_sources_for_box(x, L, N, prune=True):
     wall_count : (M, 2D) array_like
         number of reflections at individual walls for each source.
 
-
-    References
-    ----------
-    .. [1] J. B. Allen, D. A. Berkley. "Image method for efficiently simulating
-           small‐room acoustics." The Journal of the Acoustical Society of
-           America 65.4, pp. 943-950, 1979.
-
-    .. [2] J. Borish, "Extension of the image model to arbitrary polyhedra.",
-           The Journal of the Acoustical Society of America 75.6,
-           pp. 1827-1836, 1984.
-
     """
     def _images_1d_unit_box(x, N):
         result = np.arange(-N, N + 1, dtype=x.dtype)