Approximating surfaces by moving total least squares method. - Rudolf Scitovski; Sime Ungar; Dragan Jukic (Appl. Math. Comput., 1998)

The Koch Curve: A Geometric Proof. - Sime Ungar (Am. Math. Mon., 2007)

Minimal distance index - A new clustering performance metrics. - Rudolf Scitovski; Kristian Sabo; Danijel Grahovac; Sime Ungar (Inf. Sci., 2023)

Multiple spheres detection problem - Center based clustering approach. - Kristian Sabo; Rudolf Scitovski; Sime Ungar (Pattern Recognit. Lett., 2023)

A method for searching for a globally optimal k-partition of higher-dimensional datasets. - Kristian Sabo; Rudolf Scitovski; Sime Ungar; Zoran Tomljanovic (J. Glob. Optim., 2024)

A partitioning incremental algorithm using adaptive Mahalanobis fuzzy clustering and identifying the most appropriate partition. - Rudolf Scitovski; Kristian Sabo; Danijel Grahovac; Francisco Martínez-Álvarez; Sime Ungar (Pattern Anal. Appl., 2025)