@article{CMH_1961__35_139214,
     author = {C.T.C. Wall},
     title = {Cobordism of {Pairs.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {136--145},
     publisher = {mathdoc},
     volume = {35},
     year = {1961},
     url = {http://geodesic.mathdoc.fr/item/CMH_1961__35_139214/}
}