@article{GDZPPN00234114X, title = {Instanton invariants of ...P2 via topology.}, journal = {Mathematische Annalen}, volume = {302}, year = {1995}, pages = {345-372}, zbl = {0844.57034}, url = {http://dml.mathdoc.fr/item/GDZPPN00234114X} }
Kotschick, D.; Lisca, P. Instanton invariants of ...P2 via topology.. Mathematische Annalen, Tome 302 (1995) pp. 345-372. http://gdmltest.u-ga.fr/item/GDZPPN00234114X/