Youn W. Lee

Classifying torsion-free subgroups of the Picard group

Michael Frame, A. Brunner, N. J. Wielenberg, 1984 .

Polyhedral groups and graph amalgamation products

A. Brunner, N. J. Wielenberg, Youn W. Lee, 1985 .

A RATIONAL INVARIANT FOR KNOT CROSSINGS

Youn W. Lee, 1998 .

Contractibly embedded 2-spheres in ²×²

Youn W. Lee, 1982 .

Handle attaching on generic maps

Youn W. Lee, 1983 .

Abelian rank of normal torsion-free finite index subgroups of polyhedral groups

Youn W. Lee, 1985 .