An irreducible Heegaard diagram of the real projective 3-space P 3 . Im, Young Ho; Kim, Soo Hwan — 2000 International Journal of Mathematics and Mathematical Sciences
Codimension 2 fibrators that are closed under finite product. Im, Young Ho; Kang, Mee Kwang; Woo, Ki Mun — 1998 International Journal of Mathematics and Mathematical Sciences