@article{10_4153_CMB_1999_003_9,
     author = {Brown, Tom C. and Graham, Ronald L. and Landman, Bruce M.},
     title = {On the {Set} of {Common} {Differences} in van der {Waerden{\textquoteright}s} {Theorem} on {Arithmetic} {Progressions}},
     journal = {Canadian mathematical bulletin},
     pages = {25--36},
     year = {1999},
     volume = {42},
     number = {1},
     doi = {10.4153/CMB-1999-003-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1999-003-9/}
}