@article{ITA_1993__27_6_541_0,
     author = {Trier, U.},
     title = {On the average number of registers needed to evaluate a special class of backtrack trees},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {541--554},
     year = {1993},
     publisher = {EDP Sciences},
     volume = {27},
     number = {6},
     mrnumber = {1258751},
     zbl = {0809.68104},
     language = {en},
     url = {https://www.numdam.org/item/ITA_1993__27_6_541_0/}
}