Robust curve reconstruction with k-order alpha-shapes. - Dmitry N. Krasnoshchekov; Valentin Polishchuk (Shape Modeling International, 2008)

Shape approximation using k-order alpha-hulls. - Dmitry N. Krasnoshchekov; Valentin Polishchuk; Arto Vihavainen (SCG, 2010)

Order-k α-hulls and α-shapes. - Dmitry N. Krasnoshchekov; Valentin Polishchuk (Inf. Process. Lett., 2014)