@article{1206133986,
author = {Shimomura, Katsumi},
title = {Novikov's ${\rm Ext}\sp2$ at the prime 2},
journal = {Hiroshima Math. J.},
volume = {11},
number = {2},
year = {1981},
pages = { 499-513},
language = {en},
url = {http://dml.mathdoc.fr/item/1206133986}
}
Shimomura, Katsumi. Novikov's ${\rm Ext}\sp2$ at the prime 2. Hiroshima Math. J., Tome 11 (1981) no. 2, pp. 499-513. http://gdmltest.u-ga.fr/item/1206133986/