@article{GDZPPN002319616, title = {Branched Covers of Surfaces in 4-Manifolds.}, journal = {Mathematische Annalen}, volume = {250}, year = {1980}, pages = {111-132}, zbl = {0421.57002}, url = {http://dml.mathdoc.fr/item/GDZPPN002319616} }
Akbulut, Selman; Kirby, Robion. Branched Covers of Surfaces in 4-Manifolds.. Mathematische Annalen, Tome 250 (1980) pp. 111-132. http://gdmltest.u-ga.fr/item/GDZPPN002319616/