A new prescription for viscosity in Smoothed Particle HydrodynamicsS. J. Watkins, A. S. Bhattal, N. Francis, J. A. Turner and A. P. WhitworthAstron. Astrophys. Suppl. Ser., 119 1 (1996) 177-187DOI: https://doi.org/10.1051/aas:1996104