TY - JOUR AU - Akyıldız, Ersan TI - On the Factorization of the Poincaré Polynomial: A Survey JO - Serdica Mathematical Journal PY - 2004 SP - 159 EP - 176 VL - 30 IS - 2-3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SMJ2_2004_30_2-3_a3/ LA - en ID - SMJ2_2004_30_2-3_a3 ER -