Mignotte, M., and A. Pethö. “On the System of Diophantine Equations $x^2 - 6y^2 = -5$ and $x= 2z^2 - 1$”. MATHEMATICA SCANDINAVICA, vol. 76, Dec. 1995, pp. 50-60, doi:10.7146/math.scand.a-12524.