@article{1138038938,
author = {Sasao, Seiya and \=Oshima, Hideaki},
title = {Change of the base point in the homotopy exact sequence of a fibration},
journal = {Kodai Math. J.},
volume = {11},
number = {1},
year = {1988},
pages = { 425-440},
language = {en},
url = {http://dml.mathdoc.fr/item/1138038938}
}
Sasao, Seiya; Ōshima, Hideaki. Change of the base point in the homotopy exact sequence of a fibration. Kodai Math. J., Tome 11 (1988) no. 1, pp. 425-440. http://gdmltest.u-ga.fr/item/1138038938/