@article{05002575,
title = {Yau-Zaslow formula on K3 surfaces for non-primitive classes.},
journal = {Geometry \& Topology},
volume = {5},
year = {2005},
pages = {1977-2012},
doi = {10.2140/gt.2005.9.1977},
zbl = {1088.53059},
language = {en},
url = {http://dml.mathdoc.fr/item/05002575}
}
Lee, Junho; Leung, Naichung Conan. Yau-Zaslow formula on K3 surfaces for non-primitive classes.. Geometry & Topology, Tome 5 (2005) pp. 1977-2012. doi : 10.2140/gt.2005.9.1977. http://gdmltest.u-ga.fr/item/05002575/