@article{AMI_2001_28_a1,
     author = {Andreas Dress and Florian Luca},
     title = {Real numbers that have good diophantine approximations of the form rn+1/rn},
     journal = {Annales mathematicae et informaticae},
     pages = {13--19},
     year = {2001},
     volume = {28},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AMI_2001_28_a1/}
}