M. Hanslien, R. Artebrant, J. Sundnes & A. Tveito. (1970). An Unconditionally Stable Second Order Method for the Luo-Rudy 1 Model Used in Simulations of Defibrillation.
            <i>International Journal of Numerical Analysis and Modeling</i>. <i>6</i> (4).
            627-641.
         doi: