Fairing cubic B-spline curves. - Gerald E. Farin; Gerhard Rein; Nickolas S. Sapidis; Andrew J. Worsey (Comput. Aided Geom. Des., 1987)

An algorithm for constructing convexity and monotonicity-preserving splines in tension. - Nickolas S. Sapidis; Panagiotis D. Kaklis (Comput. Aided Geom. Des., 1988)

Curvature and the fairness of curves and surfaces. - Gerald E. Farin; Nickolas S. Sapidis (IEEE Computer Graphics and Applications, 1989)

Automatic fairing algorithm for B-spline curves. - Nickolas S. Sapidis; Gerald E. Farin (Comput. Aided Des., 1990)

Domain Delaunay Tetrahedrization of arbitrarily shaped curved polyhedra defined in a solid modeling system. - Nickolas S. Sapidis; Renato Perucchio (Symposium on Solid Modeling and Applications, 1991)

Delaunay triangulation of arbitrarily shaped planar domains. - Nickolas S. Sapidis; Renato Perucchio (Comput. Aided Geom. Des., 1991)

Domain Delaunay tetrahedrization of solid models. - Nickolas S. Sapidis; Renato Perucchio (Int. J. Comput. Geom. Appl., 1991)

Solid/solid classification operations for recursive spatial decomposition and domain triangulation of solid models. - Nickolas S. Sapidis; Renato Perucchio (Comput. Aided Des., 1992)

Controlling the curvature of a quadratic Bézier curve. - Nickolas S. Sapidis; William H. Frey (Comput. Aided Geom. Des., 1992)

A Hybrid Method for Shape-Preserving Interpolation with Curvature-Continuous Quintic Splines. - Nickolas S. Sapidis; Panagiotis D. Kaklis (Geometric Modelling, 1993)

1. Approximation with Aesthetic Constraints. - H. G. W. Burchard; J. A. Ayers; William H. Frey; Nickolas S. Sapidis (Designing Fair Curves and Surfaces, 1994)

10. Polynomial Splines of Nonuniform Degree: Controlling Convexity and Fairness. - Alexandros I. Ginnis; Panagiotis D. Kaklis; Nickolas S. Sapidis (Designing Fair Curves and Surfaces, 1994)

Curvature-sign-type boundary conditions in parametric cubic-spline interpolation. - Panagiotis D. Kaklis; Nickolas S. Sapidis (Comput. Aided Geom. Des., 1994)

Variable-Order Surface Reconstruction Through Region Growing. - Nickolas S. Sapidis (CAD Systems Development, 1995)

Convexity-preserving interpolatory parametric splines of non-uniform polynomial degree. - Panagiotis D. Kaklis; Nickolas S. Sapidis (Comput. Aided Geom. Des., 1995)

Direct Construction of Polynomial Surfaces from Dense Range Images Through Region Growing. - Nickolas S. Sapidis; Paul J. Besl (ACM Trans. Graph., 1995)

Visualization of curvature plots and evaluation of fairness: an analysis of the effect of 'scaling'. - Nickolas S. Sapidis; George D. Koras (Comput. Aided Geom. Des., 1997)

Planar domain simplification for modeling virtual-solids in plant and machinery layout. - Nickolas S. Sapidis; Gabriel Theodosiou (Comput. Aided Des., 1999)

Informationally-Complete Product Models of Complex Arrangements for Simulation-Based Engineering: Modelling Design Constraints using Virtual Solids. - Nickolas S. Sapidis; Gabriel Theodosiou (Eng. Comput., 2000)

Methods of Shape-Preserving Spline Approximation: Boris I. Kvasov World Scientific Publishing Co., Singapore, 2000, 356 pp, ISBN 981-02-4010-4. - Nickolas S. Sapidis (Comput. Aided Des., 2001)

Information Models of Design Constraints for Collaborative Product Development. - Gabriel Theodosiou; Nickolas S. Sapidis; Abdelaziz Bouras (GMP, 2002)

Range-Image segmentation and model reconstruction based on a fit-and-merge strategy. - Mourad Djebali; Mahmoud Melkemi; Nickolas S. Sapidis (Symposium on Solid Modeling and Applications, 2002)

A Fit-and-Merge Algorithm for Range-Image Segmentation and Model Reconstruction. - Mourad Djebali; Mahmoud Melkemi; Nickolas S. Sapidis (J. Comput. Inf. Sci. Eng., 2002)

Editorial to special issue: CAD education. - Nickolas S. Sapidis; Myung-Soo Kim (Comput. Aided Des., 2004)

Information models of layout constraints for product life-cycle management: a solid-modelling approach. - Gabriel Theodosiou; Nickolas S. Sapidis (Comput. Aided Des., 2004)

Planar Development of Free-Form Surfaces: Quality Evaluation and Visual Inspection. - Phillip N. Azariadis; Nickolas S. Sapidis (Computing, 2004)

Efficient Parameterization of 3D Point-Sets Using Recursive Dynamic Base Surfaces. - Phillip N. Azariadis; Nickolas S. Sapidis (Panhellenic Conference on Informatics, 2005)

Drawing curves onto a cloud of points for point-based modelling. - Phillip N. Azariadis; Nickolas S. Sapidis (Comput. Aided Des., 2005)

A thorough encyclopaedia on geometric modelling, its foundations, methods and applications: Handbook of computer aided geometric design, Gerald Farin, Josef Hoschek, Myung-Soo Kim. - Nickolas S. Sapidis (Comput. Aided Des., 2005)

Product design using point-cloud surfaces: A recursive subdivision technique for point parameterization. - Phillip N. Azariadis; Nickolas S. Sapidis (Comput. Ind., 2007)

Geometric modeling of spatial constraints: objectives, methods and solid-modeling requirements. - Nickolas S. Sapidis (Computing, 2007)

Coiflet Based Methods for Range Image Processing. - Mourad Djebali; Mahmoud Melkemi; Kamal E. Melkemi; Nickolas S. Sapidis (Int. J. Image Graph., 2007)

An interactive sketching method for 3D object modeling. - Sofia Kyratzi; Nickolas S. Sapidis (DIMEA, 2008)

Retrieval of 3D Articulated Objects Using a Graph-based Representation. - Alexander Agathos; Ioannis Pratikakis; Panagiotis Papadakis; Stavros J. Perantonis; Phillip N. Azariadis; Nickolas S. Sapidis (3DOR@Eurographics, 2009)

Extracting a polyhedron from a single-view sketch: Topological construction of a wireframe sketch with minimal hidden elements. - Sofia Kyratzi; Nickolas S. Sapidis (Comput. Graph., 2009)

From sketch to solid: an algebraic cross-section criterion for the realizability of a wireframe sketch. - Sofia Kyratzi; Nickolas S. Sapidis (Computing, 2009)

A virtual reality system for the determination of critical machining-process parameters. - Markos A. Petousis; Nickolas Bilalis; Nickolas S. Sapidis (Int. J. Intell. Eng. Informatics, 2010)

3D articulated object retrieval using a graph-based representation. - Alexander Agathos; Ioannis Pratikakis; Panagiotis Papadakis; Stavros J. Perantonis; Phillip N. Azariadis; Nickolas S. Sapidis (Vis. Comput., 2010)

Protrusion-oriented 3D mesh segmentation. - Alexander Agathos; Ioannis Pratikakis; Stavros J. Perantonis; Nickolas S. Sapidis (Vis. Comput., 2010)

An Algorithm to Detect the Weak-Symmetry of a Simple Polygon. - Mahmoud Melkemi; Frederic Cordier; Nickolas S. Sapidis (ICIAR (1), 2011)

3D Object Modeling using Sketches. - Sofia Kyratzi; Nickolas S. Sapidis (Inf. Resour. Manag. J., 2011)

Inferring mirror symmetric 3D shapes from sketches. - Frederic Cordier; Hyewon Seo; Mahmoud Melkemi; Nickolas S. Sapidis (Comput. Aided Des., 2013)

A Provable Algorithm to Detect Weak Symmetry in a Polygon. - Mahmoud Melkemi; Frederic Cordier; Nickolas S. Sapidis (Int. J. Image Graph., 2013)

Automatic Assembly Design for Engineering-to-Order Products Based on Multiple Models and Assembly Features. - Iraklis Chatziparasidis; Nickolas S. Sapidis (PLM, 2016)

A CAD Tribute to Gerald Farin. - Kewei Chen 001; Nikolaos C. Gabrielides; Nickolas S. Sapidis; Ramon F. Sarraga; Timothy Strotman; Hans Wolters; Zhiyong (Sean) Xie (Comput. Aided Des., 2016)

C1 sign, monotonicity and convexity preserving Hermite polynomial splines of variable degree. - Nikolaos C. Gabrielides; Nickolas S. Sapidis (J. Comput. Appl. Math., 2018)

Cubic polynomial and cubic rational C1 sign, monotonicity and convexity preserving Hermite interpolation. - Nikolaos C. Gabrielides; Nickolas S. Sapidis (J. Comput. Appl. Math., 2019)

Shape Analysis of Generalized Cubic Curves. - Nikolaos C. Gabrielides; Nickolas S. Sapidis (Comput. Aided Des., 2020)

Inflection points on 3D curves. - Nikolaos C. Gabrielides; Nickolas S. Sapidis (Comput. Aided Geom. Des., 2020)

Numerical Shape Interrogation of Planar Generalized Cubic Curves. - Nikolaos C. Gabrielides; Nickolas S. Sapidis (Comput. Aided Des., 2022)

Special Issue in the Memory of Herb Voelcker. - Jarek Rossignac; Nickolas S. Sapidis; Vadim Shapiro (Comput. Aided Des., 2023)

Enhancing operational research in mechatronic systems via modularization: comparative analysis of four clustering algorithms using validation indices. - Ioannis Mikrou; Nickolas S. Sapidis (Oper. Res., 2024)

Point-normal convexity preserving curve interpolation. - Nikolaos C. Gabrielides; Nickolas S. Sapidis (Comput. Aided Des., 2025)

A Systematic Evaluation of Clustering Algorithms Against Expert-Derived Clustering. - Ioannis Mikrou; Nickolas S. Sapidis (Oper. Res. Forum, 2025)