diff --git a/README.md b/README.md
index f88d1df..418ca39 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,5 @@
 # harminv
 
+Harminv is a free program (and accompanying library) to solve the problem of harmonic inversion — given a discrete-time, finite-length signal that consists of a sum of finitely-many sinusoids (possibly exponentially decaying) in a given bandwidth, it determines the frequencies, decay constants, amplitudes, and phases of those sinusoids.
+It can, in principle, provide much better accuracy than straightforwardly extracting FFT peaks, essentially because it assumes a specific form for the signal. (Fourier transforms, in contrast, attempt to represent any data as a sum of sinusoidal components, and are thus limited by the uncertainty principle.) It is also often more robust than directly least-squares fitting the data (which can have problematic convergence), since it re-expresses the problem in terms of simply finding the eigenvalues of a small matrix.
+
diff --git a/harminv.spec b/harminv.spec
new file mode 100644
index 0000000..799f682
--- /dev/null
+++ b/harminv.spec
@@ -0,0 +1,90 @@
+Name:          harminv
+Version:       1.3.1
+Release:       1mamba
+Summary:       A free program (and accompanying library) to solve the problem of harmonic inversion
+Group:         Applications/Scientific
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           http://ab-initio.mit.edu/wiki/index.php/Harminv
+Source:        http://ab-initio.mit.edu/harminv/harminv-%{version}.tar.gz
+License:       GPL
+## AUTOBUILDREQ-BEGIN
+BuildRequires: gcc-fortran
+BuildRequires: glibc-devel
+%ifarch %{ix86}
+BuildRequires: libatlas-3dnow-devel
+%endif
+BuildRequires: libblas-devel
+BuildRequires: libgcc
+BuildRequires: libquadmath-devel
+## AUTOBUILDREQ-END
+Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
+BuildRoot:     %{_tmppath}/%{name}-%{version}-root
+
+%description
+Harminv is a free program (and accompanying library) to solve the problem of harmonic inversion — given a discrete-time, finite-length signal that consists of a sum of finitely-many sinusoids (possibly exponentially decaying) in a given bandwidth, it determines the frequencies, decay constants, amplitudes, and phases of those sinusoids.
+It can, in principle, provide much better accuracy than straightforwardly extracting FFT peaks, essentially because it assumes a specific form for the signal. (Fourier transforms, in contrast, attempt to represent any data as a sum of sinusoidal components, and are thus limited by the uncertainty principle.) It is also often more robust than directly least-squares fitting the data (which can have problematic convergence), since it re-expresses the problem in terms of simply finding the eigenvalues of a small matrix.
+
+%package -n lib%{name}
+Group:         System/Libraries
+Summary:       Shared libraries for %{name}
+
+%description -n lib%{name}
+This package contains shared libraries for %{name}.
+
+%package -n lib%{name}-devel
+Group:         Development/Libraries
+Summary:       Development files for %{name}
+Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
+## note: you can add this requirement if .pc files are provided by this package
+#Requires:      pkg-config
+
+%description -n lib%{name}-devel
+This package contains libraries and header files for developing applications that use %{name}.
+
+
+%debug_package
+
+%prep
+%setup -q
+
+%build
+%configure \
+   --enable-shared
+
+%make
+
+%install
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+%makeinstall
+
+%clean
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+%post -n lib%{name} -p /sbin/ldconfig
+%postun -n lib%{name} -p /sbin/ldconfig
+
+%files
+%defattr(-,root,root)
+%{_bindir}/harminv
+%{_mandir}/man1/harminv.1.gz
+%doc AUTHORS COPYING
+
+%files -n lib%{name}
+%defattr(-,root,root)
+%{_libdir}/libharminv.so.*
+
+%files -n lib%{name}-devel
+%defattr(-,root,root)
+%{_includedir}/harminv.h
+%{_libdir}/libharminv.a
+%{_libdir}/libharminv.la
+%{_libdir}/libharminv.so
+%{_libdir}/pkgconfig/harminv.pc
+%doc ChangeLog NEWS README
+
+
+%changelog
+* Sun Nov 17 2013 Silvan Calarco <silvan.calarco@mambasoft.it> 1.3.1-1mamba
+- package created by silvan using the webbuild interface