@article{oai:tsukuba.repo.nii.ac.jp:00016171,
 author = {Bedocchi, Edmondo},
 issue = {2},
 journal = {Tsukuba Journal of Mathematics},
 month = {Dec},
 pages = {285--289},
 title = {Iteration controlee de la fonction σ},
 volume = {5},
 year = {1981}
}