| Publication | Date of Publication | Type |
|---|
| A Triple of Projective Billiards | 2023-04-11 | Paper |
| On the motion of billiards in ellipses | 2022-11-17 | Paper |
| Area-invariant pedal-like curves derived from the ellipse | 2022-05-31 | Paper |
| Arbeitsbuch Mathematik | 2022-05-11 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5862170 | 2022-03-04 | Paper |
| The geometry of billiards in ellipses and their Poncelet grids | 2021-11-24 | Paper |
| Isometric Billiards in Ellipses and Focal Billiards in Ellipsoids | 2021-11-11 | Paper |
| Grundwissen Mathematikstudium – Analysis und Lineare Algebra mit Querverbindungen | 2021-11-03 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5003079 | 2021-07-29 | Paper |
| On the Motion of Billiards in Ellipses | 2021-05-08 | Paper |
| String constructions of quadrics revisited | 2021-04-22 | Paper |
| Steiner's Hat: a Constant-Area Deltoid Associated with the Ellipse | 2021-04-14 | Paper |
| Arbeitsbuch Lineare Algebra | 2020-11-02 | Paper |
| Lineare Algebra | 2020-08-21 | Paper |
| The Evolution of Descriptive Geometry in Austria | 2020-05-29 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5110908 | 2020-05-26 | Paper |
| The Universe of Quadrics | 2020-04-09 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4615160 | 2019-02-01 | Paper |
| Giving Birth to the International Society for Geometry and Graphics—A Documentation of the Years 1988–1994 | 2018-11-07 | Paper |
| A Spatial Version of the Theorem of the Angle of Circumference | 2018-11-07 | Paper |
| Two Remarkable Spherical Arrangements of Circles | 2018-11-07 | Paper |
| Arbeitsbuch Mathematik | 2018-07-24 | Paper |
| Mathematik | 2018-06-29 | Paper |
| On relaxed elastic lines of the second type on an oriented surface in the Galilean space \(G_3\) | 2017-10-19 | Paper |
| Flexible polyhedral surfaces with two flat poses | 2017-09-27 | Paper |
| On instantaneous invariants of hyperbolic planes | 2017-09-19 | Paper |
| Ergänzungen und Vertiefungen zu Arens et al., Mathematik | 2017-07-06 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2963660 | 2017-02-21 | Paper |
| On the flexibility and symmetry of overconstrained mechanisms | 2017-01-13 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2834107 | 2016-11-25 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2822667 | 2016-10-04 | Paper |
| Equicevian Points of a Triangle | 2016-06-16 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2803876 | 2016-05-03 | Paper |
| The Universe of Conics | 2016-02-02 | Paper |
| Mathematik | 2015-07-10 | Paper |
| Arbeitsbuch Mathematik | 2015-07-10 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5253562 | 2015-05-27 | Paper |
| The hidden geometry in Vermeer's ``The Art of Painting | 2015-02-25 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2927920 | 2014-11-05 | Paper |
| On the synthesis of spatial cycloidal gears | 2014-08-20 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2846606 | 2013-09-06 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2842933 | 2013-08-08 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4914062 | 2013-04-17 | Paper |
| Grundwissen Mathematikstudium | 2012-07-31 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2901911 | 2012-07-31 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2901928 | 2012-07-31 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3012334 | 2011-07-06 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3010457 | 2011-07-04 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3010458 | 2011-07-04 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3010459 | 2011-07-04 | Paper |
| A kinematic approach to Kokotsakis meshes | 2011-03-22 | Paper |
| Gears and Belt Drives for Non-Uniform Transmission | 2010-06-02 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3644880 | 2009-11-13 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3617084 | 2009-03-26 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3548556 | 2008-12-16 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3548557 | 2008-12-16 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3506859 | 2008-06-17 | Paper |
| A new look at the Ball-Disteli diagram and its relevance to spatial gearing | 2007-09-18 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3438337 | 2007-05-15 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3434920 | 2007-05-03 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5482815 | 2006-08-15 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5474505 | 2006-06-26 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3371879 | 2006-02-21 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4680695 | 2005-06-07 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4824107 | 2004-11-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4459255 | 2004-03-28 | Paper |
| Napoleon's theorem and generalizations through linear maps | 2003-02-10 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3150881 | 2002-10-20 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2717156 | 2001-06-17 | Paper |
| Higher order flexibility of octahedra | 2001-06-12 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2718705 | 2001-05-13 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4501221 | 2000-09-03 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4945489 | 2000-05-29 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4233068 | 1999-09-13 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4251349 | 1999-06-17 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4229211 | 1999-03-07 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4352336 | 1998-12-15 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4381910 | 1998-03-25 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4357626 | 1998-02-11 | Paper |
| Almost-orthonormal vector systems | 1997-11-11 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4361586 | 1997-10-28 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4896209 | 1997-06-30 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4858617 | 1996-07-18 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4841665 | 1995-12-18 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4328205 | 1995-11-22 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4309480 | 1995-03-28 | Paper |
| On the Identity of Polyhedra | 1994-12-18 | Paper |
| Two remarkable movable frameworks | 1992-06-28 | Paper |
| Zu K. Schüttes Verallgemeinerungen des Satzes von Napoleon. (About K. Schüttes' generalizations of the Theorem of Napoleon) | 1991-01-01 | Paper |
| Ein bewegliches Tetraederpaar. (A movable pair of tetrahedra) | 1988-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3799260 | 1988-01-01 | Paper |
| Zur Einzigkeit der Bricardschen Oktaeder. (Uniqueness of the Bricard octahedra) | 1987-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3334548 | 1984-01-01 | Paper |
| Eine Ortsaufgabe und der Satz von Ivory | 1982-01-01 | Paper |
| Bemerkungen über zwei räumliche Trilaterationsprobleme | 1982-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3927781 | 1981-01-01 | Paper |
| Fundamentalsätze der Quasielliptischen Differentialgeometrie | 1979-01-01 | Paper |
| Über zweiparametrige ebene Bewegungsvorgänge | 1979-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3854275 | 1979-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4134521 | 1977-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4125429 | 1976-01-01 | Paper |
| Quasielliptische Schiebflächen mit unendlich vielen Schiebnetzen I | 1975-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4101104 | 1975-01-01 | Paper |
| Zur Kennzeichnung quasielliptischer und elliptischer Schiebnetze | 1974-01-01 | Paper |
| Über ein sechsgliedriges räumliches Getriebe | 1974-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5680702 | 1972-01-01 | Paper |
| Quasielliptische Schraubschiebflächen | 1972-01-01 | Paper |
| Über Hüllbahnen von Trochoiden bei Trochoidenbewegungen | 1971-01-01 | Paper |
| Radlinien als Hüllkurvenpaare | 1970-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5600677 | 1970-01-01 | Paper |
| Hüllbahnen von Trochoiden bei Trochoidenbewegungen | 1970-01-01 | Paper |
| Elementare Bestimmung der gefährlichen Fläche beim räumlichen Rückwärtsschnitt | 1967-01-01 | Paper |
