P. Erdös. "Some remarks on the iterates of the φ and σ functions." Colloquium Mathematicae 17.2 (1967): 195-202. <http://eudml.org/doc/267559>.
@article{P1967, author = {P. Erdös}, journal = {Colloquium Mathematicae}, keywords = {number theory}, language = {fre}, number = {2}, pages = {195-202}, title = {Some remarks on the iterates of the φ and σ functions}, url = {http://eudml.org/doc/267559}, volume = {17}, year = {1967}, }
TY - JOUR AU - P. Erdös TI - Some remarks on the iterates of the φ and σ functions JO - Colloquium Mathematicae PY - 1967 VL - 17 IS - 2 SP - 195 EP - 202 LA - fre KW - number theory UR - http://eudml.org/doc/267559 ER -