@article{CMH_1985__60_140015,
     author = {Tim D. Cochran},
     title = {Geometric invariants of link cobordism.},
     journal = {Commentarii mathematici Helvetici},
     pages = {291--311},
     publisher = {mathdoc},
     volume = {60},
     year = {1985},
     zbl = {0574.57008},
     url = {http://geodesic.mathdoc.fr/item/CMH_1985__60_140015/}
}