@article{CMH_1971__46_139475,
     author = {D.W. Sumners},
     title = {Invertible {Knot} {Cobordisms}},
     journal = {Commentarii mathematici Helvetici},
     pages = {240},
     publisher = {mathdoc},
     volume = {46},
     year = {1971},
     zbl = {0227.57007},
     language = {un},
     url = {https://geodesic-test.mathdoc.fr/item/CMH_1971__46_139475/}
}