Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{ELMA_1967__22_140855, author = {P. L\"auchli}, title = {Tangram - ein {Puzzle-Problem} f\"ur den {Computer.}}, journal = {Elemente der Mathematik}, pages = {73--85}, publisher = {mathdoc}, volume = {22}, year = {1967}, zbl = {0153.18802}, url = {http://geodesic.mathdoc.fr/item/ELMA_1967__22_140855/} }
P. Läuchli. Tangram - ein Puzzle-Problem für den Computer.. Elemente der Mathematik, Tome 22 (1967), pp. 73-85. http://geodesic.mathdoc.fr/item/ELMA_1967__22_140855/