TY - BOOK AU - Collingwood David H AU - McGovern William M TI - Nilpotent orbits in semisimple Lie algebras SN - 0-534-18834-6 U1 - 512.55 PY - 1993/// CY - New York PB - Van Nostrand Reinhold KW - Lie algebras KW - Orbit method ER -