@manual{GLPK,
    year = 2010,
    author = {Makhorin, Andrew},
    organization = {GNU Software Foundation},
    title = {GNU Linear Programming Kit},
    url = {http://www.gnu.org/software/glpk/glpk.html}
    }
@manual{GPL,
    year = 2007,
    organization = {Free Software Foundation, Inc.},
    title = {GNU General Public License},
    url = {http://www.gnu.org/licenses/gpl.html},
    }
@manual{SWIG,
    year = 2010,
    organization = {SWIG.org},
    title = {Simplified Wrapper and Interface Generator},
    url = {http://www.swig.org/}
    }
@manual{JNI,
    year = 2004,
    organization = {Sun Microsystems, Inc.},
    title= {Java Native Interface Specification v1.5},
    url = {http://java.sun.com/j2se/1.5/docs/guide/jni/}
    }