Remove UTF-8 chars

Change-Id: I1e98dd7441d2de05e0b3b0937e496103177631f8

docs/source/bibliography.rst

@@ -17,12 +17,12 @@ Bibliography
 
 .. [ByrdNocedal] R. H. Byrd, J. Nocedal, R. B. Schanbel,
    **Representations of Quasi-Newton Matrices and their use in Limited
-   Memory Methods**, *Mathematical Programming* 63(4):129–-156, 1994.
+   Memory Methods**, *Mathematical Programming* 63(4):129-156, 1994.
 
 .. [ByrdSchnabel] R.H. Byrd, R.B. Schnabel, and G.A. Shultz, **Approximate
    solution of the trust region problem by minimization over
    two dimensional subspaces**, *Mathematical programming*,
-   40(1):247–263, 1988.
+   40(1):247-263, 1988.
 
 .. [Chen] Y. Chen, T. A. Davis, W. W. Hager, and
    S. Rajamanickam, **Algorithm 887: CHOLMOD, Supernodal Sparse
@@ -34,7 +34,7 @@ Bibliography
 .. [GolubPereyra] G.H. Golub and V. Pereyra, **The differentiation of
    pseudo-inverses and nonlinear least squares problems whose
    variables separate**, *SIAM Journal on numerical analysis*,
-   10(2):413–432, 1973.
+   10(2):413-432, 1973.
 
 .. [HartleyZisserman] R.I. Hartley & A. Zisserman, **Multiview
    Geometry in Computer Vision**, Cambridge University Press, 2004.
@@ -53,27 +53,27 @@ Bibliography
    IEEE Conference on Computer Vision and Pattern Recognition*, 2012.
 
 .. [Kanzow] C. Kanzow, N. Yamashita and M. Fukushima,
-   **Levenberg–Marquardt methods with strong local convergence
+   **Levenberg-Marquardt methods with strong local convergence
    properties for solving nonlinear equations with convex
    constraints**, *Journal of Computational and Applied Mathematics*,
-   177(2):375–397, 2005.
+   177(2):375-397, 2005.
 
 .. [Levenberg] K. Levenberg, **A method for the solution of certain
    nonlinear problems in least squares**, *Quart. Appl.  Math*,
-   2(2):164–168, 1944.
+   2(2):164-168, 1944.
 
 .. [LiSaad] Na Li and Y. Saad, **MIQR: A multilevel incomplete qr
    preconditioner for large sparse least squares problems**, *SIAM
-   Journal on Matrix Analysis and Applications*, 28(2):524–550, 2007.
+   Journal on Matrix Analysis and Applications*, 28(2):524-550, 2007.
 
 .. [Madsen] K. Madsen, H.B. Nielsen, and O. Tingleff, **Methods for
    nonlinear least squares problems**, 2004.
 
 .. [Mandel] J. Mandel, **On block diagonal and Schur complement
-   preconditioning**, *Numer. Math.*, 58(1):79–93, 1990.
+   preconditioning**, *Numer. Math.*, 58(1):79-93, 1990.
 
 .. [Marquardt] D.W. Marquardt, **An algorithm for least squares
-   estimation of nonlinear parameters**, *J. SIAM*, 11(2):431–441,
+   estimation of nonlinear parameters**, *J. SIAM*, 11(2):431-441,
    1963.
 
 .. [Mathew] T.P.A. Mathew, **Domain decomposition methods for the
@@ -82,7 +82,7 @@ Bibliography
 
 .. [NashSofer] S.G. Nash and A. Sofer, **Assessing a search direction
    within a truncated newton method**, *Operations Research Letters*,
-   9(4):219–221, 1990.
+   9(4):219-221, 1990.
 
 .. [Nocedal] J. Nocedal, **Updating Quasi-Newton Matrices with Limited
    Storage**, *Mathematics of Computation*, 35(151): 773--782, 1980.
@@ -102,7 +102,7 @@ Bibliography
    F'(x) F"(x)**, Advances in Engineering Software 4(2), 75-76, 1978.
 
 .. [RuheWedin] A. Ruhe and P.Å. Wedin, **Algorithms for separable
-   nonlinear least squares problems**, Siam Review, 22(3):318–337,
+   nonlinear least squares problems**, Siam Review, 22(3):318-337,
    1980.
 
 .. [Saad] Y. Saad, **Iterative methods for sparse linear
@@ -124,9 +124,9 @@ Bibliography
 
 .. [Wiberg] T. Wiberg, **Computation of principal components when data
    are missing**, In Proc. *Second Symp. Computational Statistics*,
-   pages 229–236, 1976.
+   pages 229-236, 1976.
 
 .. [WrightHolt] S. J. Wright and J. N. Holt, **An Inexact
    Levenberg Marquardt Method for Large Sparse Nonlinear Least
    Squares**, *Journal of the Australian Mathematical Society Series
-   B*, 26(4):387–403, 1985.
+   B*, 26(4):387-403, 1985.

docs/source/nnls_tutorial.rst

@@ -941,11 +941,11 @@ directory contains a number of other examples:
 
    .. [#f9] Giorgio Grisetti, Rainer Kummerle, Cyrill Stachniss, Wolfram
       Burgard. A Tutorial on Graph-Based SLAM. IEEE Intelligent Transportation
-      Systems Magazine, 52(3):199–222, 2010.
+      Systems Magazine, 52(3):199-222, 2010.
 
    .. [#f10] E. Olson, J. Leonard, and S. Teller, “Fast iterative optimization of
       pose graphs with poor initial estimates,” in Robotics and Automation
-      (ICRA), IEEE International Conference on, 2006, pp. 2262–2269.
+      (ICRA), IEEE International Conference on, 2006, pp. 2262-2269.
 
 #. `slam/pose_graph_3d/pose_graph_3d.cc
    <https://ceres-solver.googlesource.com/ceres-solver/+/master/examples/slam/pose_graph_3d/pose_graph_3d.cc>`_