@article{01821321,
title = {Unit root testing in the presence of innovation variance breaks: a simple solution with increased power.},
journal = {Journal of Applied Mathematics},
volume = {2},
year = {2002},
pages = {233-240},
doi = {10.1155/S1110757X02107029},
zbl = {1107.62358},
language = {en},
url = {http://dml.mathdoc.fr/item/01821321}
}
Cook, Steven. Unit root testing in the presence of innovation variance breaks: a simple solution with increased power.. Journal of Applied Mathematics, Tome 2 (2002) pp. 233-240. doi : 10.1155/S1110757X02107029. http://gdmltest.u-ga.fr/item/01821321/