%0 Journal Article %A Bisztriczky, Tibor %T C-Nodal Surfaces of Order Three %J Canadian journal of mathematics %D 1983 %P 68-100 %V 35 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1983-006-9/ %R 10.4153/CJM-1983-006-9 %F 10_4153_CJM_1983_006_9