TY  - JOUR
AU  - F. Malikow
TI  - Singular vectors corresponding to imaginary roots in verma modules over affine Lie algebras.
JO  - Mathematica Scandinavica
PY  - 1990
SP  - 73
EP  - 90
VL  - 66
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MS2_1990__66_1_167094/
ID  - MS2_1990__66_1_167094
ER  -