diff --git a/z_spm.h b/z_spm.h
index 53c67c36f68377cf93b397652c99e839e921837f..e9f08d63491dff28038a145cb325a6a21afef4aa 100644
--- a/z_spm.h
+++ b/z_spm.h
@@ -35,9 +35,6 @@ int z_spmConvertCSR2IJV( pastix_spm_t *spm );
 int z_spmConvertIJV2CSC( pastix_spm_t *spm );
 int z_spmConvertIJV2CSR( pastix_spm_t *spm );
 
-void z_spmConvertColMaj2RowMaj(pastix_spm_t *spm);
-void z_spmConvertRowMaj2ColMaj(pastix_spm_t *spm);
-
 pastix_complex64_t *z_spm2dense( const pastix_spm_t *spm );
 
 /**
diff --git a/z_spm_laplacian.c b/z_spm_laplacian.c
index 05926ca5d0983816d46f6a83eb1838af50985e3d..ba5fd0b675780c4b8ebe29e53dd61e2bd7665439 100644
--- a/z_spm_laplacian.c
+++ b/z_spm_laplacian.c
@@ -25,7 +25,7 @@
  * @ingroup spm_dev_driver
  *
  * @brief Generate a laplacian matrix for a 7-points stencil
- * \[ M = \alpha * D - \beta * A \]
+ * \f[ M = \alpha * D - \beta * A \f]
  *
  * Example:
  * >  3 -1 -1  0 -1  0  0  0
@@ -294,7 +294,7 @@ z_spmExtendedLaplacian2D( pastix_spm_t  *spm,
  * @ingroup spm_dev_driver
  *
  * @brief Generate an extended laplacian matrix for a 27-points stencil with
- * \[ M = \alpha * D - \beta * A \]
+ * \f[ M = \alpha * D - \beta * A \f]
  *
  *******************************************************************************
  *