@article{ITA_1978__12_4_319_0,
     author = {Courcelle, Bruno},
     title = {Frontiers of infinite trees},
     journal = {RAIRO. Informatique th\'eorique},
     pages = {319--337},
     publisher = {EDP-Sciences},
     volume = {12},
     number = {4},
     year = {1978},
     mrnumber = {517634},
     zbl = {0411.68065},
     language = {en},
     url = {http://archive.numdam.org/item/ITA_1978__12_4_319_0/}
}