@ARTICLE{
author={Cash GG,Gutman Ivan},
year={2004},
title={The Lapacian permanental polynomial: Formulas and algorithms},
journal={MATCH-COMMUNICATIONS IN MATHEMATICAL AND IN COMPUTER CHEMISTRY},
volume={},
number={51},
pages={129-136},
document_type={Article},
} 

@ARTICLE{
author={Gutman Ivan,Cash GG},
year={2002},
title={Relations between the permanental and characteristic polynomials of fullerenes and benzenoid hydrocarbons},
journal={MATCH-COMMUNICATIONS IN MATHEMATICAL AND IN COMPUTER CHEMISTRY},
volume={},
number={45},
pages={55-70},
document_type={Article},
}