@article{10_4064_aa_63_1_51_60,
     author = {R. Baker and J. Br\"uder and G. Harman},
     title = {Simultaneous diophantine approximation with square-free numbers},
     journal = {Acta Arithmetica},
     pages = {51--60},
     publisher = {mathdoc},
     volume = {63},
     number = {1},
     year = {1993},
     doi = {10.4064/aa-63-1-51-60},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-63-1-51-60/}
}