@article{01656122,
title = {The number of connected components of certain real algebraic curves.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {25},
year = {2001},
pages = {693-701},
doi = {10.1155/S0161171201010481},
zbl = {1027.14027},
language = {en},
url = {http://dml.mathdoc.fr/item/01656122}
}
Kim, Seon-Hong. The number of connected components of certain real algebraic curves.. International Journal of Mathematics and Mathematical Sciences, Tome 25 (2001) pp. 693-701. doi : 10.1155/S0161171201010481. http://gdmltest.u-ga.fr/item/01656122/