Algorithms for Vertical and Orthogonal L1 Linear Approximation of Points. - Peter Yamamoto; Kenji Kato; Keiko Imai; Hiroshi Imai (SCG, 1988)

A Linear-Time Algorithm for Linear L_1 Approximation of Points. - Hiroshi Imai; Kenji Kato; Peter Yamamoto (Algorithmica, 1989)

Dent and Staircase Visibility. - Derick Wood; Peter Yamamoto (CCCG, 1993)

Orthogonal Weighted Linear L1 and L∞ Approximation and Applications. - Michael E. Houle; Hiroshi Imai; Keiko Imai; Jean-Marc Robert 001; Peter Yamamoto (Discret. Appl. Math., 1993)

Computing the Dent Diameter of a Polygon. - Peter Yamamoto (CCCG, 1994)