@article{ITA_1984__18_2_147_0,
     author = {Apostolico, A.},
     title = {On context constrained squares and repetitions in a string},
     journal = {RAIRO. Informatique th\'eorique},
     pages = {147--159},
     publisher = {EDP-Sciences},
     volume = {18},
     number = {2},
     year = {1984},
     mrnumber = {761514},
     zbl = {0543.68067},
     language = {en},
     url = {http://www.numdam.org/item/ITA_1984__18_2_147_0/}
}