@article{10_1017_S0017089514000081,
     author = {BORODZIK, MACIEJ and FRIEDL, STEFAN},
     title = {THE {UNKNOTTING} {NUMBER} {AND} {CLASSICAL} {INVARIANTS} {II}},
     journal = {Glasgow mathematical journal},
     pages = {657--680},
     year = {2014},
     volume = {56},
     number = {3},
     doi = {10.1017/S0017089514000081},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089514000081/}
}