@article{RMC_1999_1999_1_a1,
     author = {Cavicchioli, Alberto and Ruini, Beatrice and Spaggiari, Fulvia},
     title = {Recubrimientos c{\'\i}clicos de nudos 2-puentes.},
     journal = {Revista matem\'atica complutense},
     pages = {383-416},
     publisher = {mathdoc},
     volume = {12},
     number = {2},
     year = {1999},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RMC_1999_1999_1_a1/}
}