@article{NUMA_1985__46_132981,
     author = {T.-Y. Li and J. Mallet-Paret and J.A. Yorke},
     title = {Regularity {Results} for {Real} {Analytic} {Homotopies.}},
     journal = {Numerische Mathematik},
     pages = {43--50},
     publisher = {mathdoc},
     volume = {46},
     year = {1985},
     zbl = {0593.65037},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1985__46_132981/}
}