      Springer, 1983,<br>
          ISBN: 3540125531,<br>
          LC: QA299.3.Q36.
        </li>
        <li>
          William Squire,<br>
          Comparison of Gauss-Hermite and Midpoint Quadrature with Application
          to the Voigt Function,<br>
          in Numerical Integration:
          Recent Developments, Software and Applications,<br>
          edited by Patrick Keast, Graeme Fairweather,<br>
          Reidel, 1987, pages 337-340,<br>
          ISBN: 9027725144,<br>
          LC: QA299.3.