@article{MOMA_1971__75_177569,
     author = {T.W. Cusick},
     title = {Lower {Bound} for a {Diophantine} {Approximation} {Function.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {398--401},
     publisher = {mathdoc},
     volume = {75},
     year = {1971},
     zbl = {0238.10017},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1971__75_177569/}
}