by Azziz, Ricardo, Waggoner, Wende T., Ochoa, Tatiana, Knochenhauer, Eric S., Boots, Larry R.
Published in Fertility and sterility (01.08.1998)

by Giese, JP, Cocke, CL, Waggoner, WT, Pedersen, JO, Kamber, EY, Tunnell, LN
Published in Physical review. A, General physics (01.11.1988)