@article{05029492,
title = {Mappings of the sphere to a simply connected space.},
journal = {Zapiski Nauchnykh Seminarov POMI},
volume = {321},
year = {2005},
pages = {159-194},
doi = {10.1007/s10958-007-0441-6},
zbl = {1151.55302},
language = {en},
url = {http://dml.mathdoc.fr/item/05029492}
}
Podkorytov, S.S. Mappings of the sphere to a simply connected space.. Zapiski Nauchnykh Seminarov POMI, Tome 321 (2005) pp. 159-194. doi : 10.1007/s10958-007-0441-6. http://gdmltest.u-ga.fr/item/05029492/