Kiyohiko Takeuchi

On canonical singularities of dimension three

Takayuki Hayakawa, Kiyohiko Takeuchi, 1987 .

Some birational maps of Fano 3-folds

Kiyohiko Takeuchi, 1989 .

Weak Fano threefolds with del Pezzo fibration

Kiyohiko Takeuchi, 2009, European Journal of Mathematics.