@article{CMH_1988__63_4_140110,
     author = {R. MacPherson and K. Vilonen},
     title = {Perverse sheaves with singularities along the curve {Yn} = {Xm.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {89--102},
     publisher = {mathdoc},
     volume = {63},
     number = {4},
     year = {1988},
     zbl = {0638.32014},
     url = {http://geodesic.mathdoc.fr/item/CMH_1988__63_4_140110/}
}