Spiegelberg, S.H. and McKinley, G.H., “Stress Relaxation and Elastic Decohesion of Viscoelastic Polymer Solutions in Extensional Flow,” J. Non-Newtonian Fluid Mech., 67, 49 (1996). https://www.sciencedirect.com/science/article/pii/S0377025796014759
Spiegelberg, S.H. and McKinley, G.H., “Stress Relaxation and Elastic Decohesion of Viscoelastic Polymer Solutions in Extensional Flow,” J. Non-Newtonian Fluid Mech., 67, 49 (1996). https://www.sciencedirect.com/science/article/pii/S0377025796014759