diff --git a/hmatrix-morpheus.cabal b/hmatrix-morpheus.cabal
--- a/hmatrix-morpheus.cabal
+++ b/hmatrix-morpheus.cabal
@@ -1,11 +1,11 @@
 name:                hmatrix-morpheus
-version:             0.1.0.0
+version:             0.1.0.1
 synopsis:            Low-level machine learning auxiliary functions.
 description:
   Purely functional interface to morpheus based on hmatrix.
   Morpheus library contains a bunch of cache line aware numerical algorithms
   suitable for using as a low-level primitives to build machine learning applications.
-homepage:            https://github.com/alexander-ignatyev/morpheus
+homepage:            https://github.com/Alexander-Ignatyev/morpheus/tree/master/hmatrix-morpheus
 license:             BSD3
 license-file:        LICENSE
 author:              Alexander Ignatyev
@@ -13,9 +13,11 @@
 copyright:           Alexander Ignatyev
 category:            math
 build-type:          Simple
-extra-source-files:  hmatrix-morpheus/README.md hmatrix-morpheus/CHANGELOG.md
+extra-source-files:  hmatrix-morpheus/README.md
+                   , hmatrix-morpheus/CHANGELOG.md
 cabal-version:       >=1.10
 extra-source-files:  src/types.h
+                   , src/lapack.h
                    , src/simple_blas.h
                    , src/matrix_reduce.h
                    , src/activation.h
diff --git a/src/lapack.h b/src/lapack.h
new file mode 100644
--- /dev/null
+++ b/src/lapack.h
@@ -0,0 +1,21 @@
+/*! \file lapack.h
+  \brief LAPACK functions declarations.
+*/
+
+#ifndef MORPHEUS_LAPACK_H
+#define MORPHEUS_LAPACK_H
+
+/*! \defgroup lapack lapack
+  \brief LAPACK functions declarations.
+  \{
+*/
+
+/*! LU decomoposition of a general matrix */
+extern void dgetrf_(int* M, int *N, double* A, int* lda, int* IPIV, int* INFO);
+
+/*! generate inverse of a matrix given its LU decomposition */
+extern void dgetri_(int* N, double* A, int* lda, int* IPIV, double* WORK, int* lwork, int* INFO);
+
+/*! \} */
+
+#endif  /* MORPHEUS_LAPACK_H */