TY - JOUR AU - Fabbri, Marc A. AU - Okoh, Frank TI - Representations of Virasoro-Heisenberg Algebras and Virasoro-Toroidal Algebras JO - Canadian journal of mathematics PY - 1999 SP - 523 EP - 545 VL - 51 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1999-024-x/ DO - 10.4153/CJM-1999-024-x ID - 10_4153_CJM_1999_024_x ER -