roslav Kautsky,<br>
          Algorithm 655:
          IQPACK,
          FORTRAN Subroutines for the Weights of Interpolatory Quadrature,<br>
          ACM Transactions on Mathematical Software,<br>
          Volume 13, Number 4, December 1987, pages 399-415.
        </li>
        <li>
          Jaroslav Kautsky, Sylvan Elhay,<br>
          Calculation of the Weights of Interpolatory Quadratures,<br>
          Numerische Mathematik,<br>
          Volume 40, 1982, pages 407-422.
        </li>
        <li>
  