TY - JOUR AU - U. Thumm AU - David Norcross BT - Physical Review Letters DA - Jan-12-1991 DO - 10.1103/PhysRevLett.67.3495 PY - 1991 SP - 3495 EP - 3498 T2 - Physical Review Letters TI - Evidence for very narrow shape resonances in low-energy electron-Cs scattering VL - 67 SN - 0031-9007 ER -