@article { ISI:A1987J209200016, title = {ORBITAL IMAGING OF THE LONE PAIR ELECTRONS IN N(CH3)3, NH3 AND NF3 BY ELECTRON MOMENTUM SPECTROSCOPY}, journal = {CHEMICAL PHYSICS LETTERS}, volume = {137}, number = {6}, year = {1987}, month = {JUL 3}, pages = {573-577}, issn = {0009-2614}, doi = {10.1016/0009-2614(87)80632-2}, author = {BAWAGAN, AO and Brion, CE} }