Über einige intervallarithmetische Grundbegriffe. - Helmut Ratschek (Computing, 1969)

Die binären Systeme der Intervallarithmetik. - Helmut Ratschek (Computing, 1970)

Über die Ableitung von intervallwertigen Funktionen. - Helmut Ratschek; Gunnar Schröder (Computing, 1971)

Gleichheit von Produkt und Formalprodukt bei Intervallpolynomen. - Helmut Ratschek (Computing, 1972)

Eigenschaften der von linearen Automaten erkennbaren Worte. - Klaus Ecker; Helmut Ratschek (Acta Informatica, 1974)

Über das Produkt von Intervallpolynomen. - Helmut Ratschek (Computing, 1974)

Nichtnumerische Aspekte der Intervallmathematik. - Helmut Ratschek (Interval Mathematics, 1975)

Representation of interval operations by coordinates. - Helmut Ratschek (Computing, 1980)

Linear interval equations. - Helmut Ratschek; W. Sauer (Computing, 1982)

Inclusion functions and global optimization. - Helmut Ratschek (Math. Program., 1985)

Inclusion functions and global optimization II. - Ramon E. Moore; Helmut Ratschek (Math. Program., 1988)

What can interval analysis do for global optimization? - Helmut Ratschek; Rudolf L. Voller (J. Glob. Optim., 1991)

Test for intersection between plane and box. - Helmut Ratschek; Jon G. Rokne (Comput. Aided Des., 1993)

Experiments using interval analysis for solving a circuit design problem. - Helmut Ratschek; Jon G. Rokne (J. Glob. Optim., 1993)

Box-sphere intersection tests. - Helmut Ratschek; Jon G. Rokne (Comput. Aided Des., 1994)

Formulas for the width of interval products. - Helmut Ratschek; Jon G. Rokne (Reliab. Comput., 1995)

The relationship between a rectangle and a triangle. - Helmut Ratschek; Jon G. Rokne (Vis. Comput., 1996)

Test for intersection between box and tetrahedron. - Helmut Ratschek; Jon G. Rokne (Int. J. Comput. Math., 1997)

Reliable Computing Special Issue on Reliable Geometric Computations. - Helmut Ratschek; Jon G. Rokne (Reliab. Comput., 1997)

Exact computation of the sign of a finite sum. - Helmut Ratschek; Jon G. Rokne (Appl. Math. Comput., 1999)

Global Interval Methods for Local Nonsmooth Optimization. - Christiane Görges; Helmut Ratschek (J. Glob. Optim., 1999)

How trivial are reliable box-plane intersections? - Helmut Ratschek; Jon G. Rokne (Comput. Aided Des., 2000)

Exact and Optimal Convex Hulls in 2D. - Helmut Ratschek; Jon G. Rokne (Int. J. Comput. Geom. Appl., 2000)

Exact Computation of Delaunay and Power Triangulations. - Marina L. Gavrilova; Helmut Ratschek; Jon G. Rokne (Reliab. Comput., 2000)

Introduction to the Special Issue: What Can One Learn from Box-Plane Intersections? - Helmut Ratschek; Jon G. Rokne (Reliab. Comput., 2000)

Robustness in GIS algorithm implementation with application to line simplification. - Helmut Ratschek; Jon G. Rokne; M. Leriger (Int. J. Geogr. Inf. Sci., 2001)

A Two-Dimensional Ellipse - Rectangle Intersection Test. - Helmut Ratschek; Jon G. Rokne (J. Math. Model. Algorithms, 2002)

Scci-hybrid Methods for 2d Curve Tracing. - Helmut Ratschek; Jon G. Rokne (Int. J. Image Graph., 2005)

Interval Global Optimization. - Helmut Ratschek; Jon G. Rokne (Encyclopedia of Optimization, 2009)