use ACM reference

Author: aartbik

docs_input/basics/sparse_tensor.rst

@@ -272,7 +272,7 @@ levels, was introduced in [`MLIR22`_, `MLIR`_]. Please refer to this literature
 for a more extensive presentation of all topics only briefly discussed in this
 online documentation.
 
-.. _B&W95: https://dl.acm.org/doi/10.1145/169627.169765
+.. _B&W95: https://dl.acm.org/doi/10.1006/jpdc.1995.1141
 .. _Bik96: https://theses.liacs.nl/1315
 .. _Bik98: https://dl.acm.org/doi/10.1145/290200.287636
 .. _Chou22: http://tensor-compiler.org/files/chou-phd-thesis-taco-formats.pdf