TY - JOUR AU - Michael Morrison AU - L. Collins BT - Physical Review A DA - Jan-03-1978 DO - 10.1103/PhysRevA.17.918 PY - 1978 SP - 918 EP - 938 T2 - Physical Review A TI - Exchange in low-energy electron-molecule scattering: Free-electron-gas model exchange potentials and applications to e-H2 and e-N2 collisions UR - http://link.aps.org/doi/10.1103/PhysRevA.17.918 VL - 17 SN - 0556-2791 ER -