@article{CRMATH_2004__338_11_873_0,
     author = {Mustapha Lahyane},
     title = {Exceptional curves on rational surfaces having {\protect\emph{K}\protect\textsuperscript{2}\ensuremath{\geqslant}0}},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {873--878},
     publisher = {Elsevier},
     volume = {338},
     number = {11},
     year = {2004},
     doi = {10.1016/j.crma.2004.03.029},
     language = {en},
}