@article{CM_1969__21_1_43_0,
     author = {Ajtai, Mikl\'os},
     title = {Divisibility properties of recurring sequences},
     journal = {Compositio Mathematica},
     pages = {43--51},
     publisher = {Wolters-Noordhoff Publishing},
     volume = {21},
     number = {1},
     year = {1969},
     mrnumber = {245545},
     zbl = {0184.07101},
     language = {en},
     url = {http://archive.numdam.org/item/CM_1969__21_1_43_0/}
}