@article{GDZPPN002211009,
title = {Cancellation of hyperbolic forms and topological four-manifolds.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {435},
year = {1993},
pages = {21-48},
zbl = {0779.57014},
url = {http://dml.mathdoc.fr/item/GDZPPN002211009}
}
Hambleton, Ian; Kreck, Matthias. Cancellation of hyperbolic forms and topological four-manifolds.. Journal für die reine und angewandte Mathematik, Tome 435 (1993) pp. 21-48. http://gdmltest.u-ga.fr/item/GDZPPN002211009/