@article{CMH_1984__59_139987,
     author = {R. Mark Goresky},
     title = {Intersection homology operations.},
     journal = {Commentarii mathematici Helvetici},
     pages = {485--506},
     publisher = {mathdoc},
     volume = {59},
     year = {1984},
     zbl = {0549.55014},
     url = {http://geodesic.mathdoc.fr/item/CMH_1984__59_139987/}
}