** van Kempen, Huub
**
**On some theorems of Poncelet and Carnot, 6 (2006) 229--234. **

**
****Kimberling, Clark
**
**Multiplying and dividing curves by points, 1 (2001) 99--105. **

**Conics associated with a cevian nest, 1 (2001) 141--150. **

**Cubics associated with triangles of equal areas, 1 (2001) 161--171. **

**Collineation, conjugacies, and cubics, 2 (2002) 21--32. **

**Bicentric pairs of points and related triangle centers, 3 (2003) 35--47. **

**Translated triangle perspective to a reference triangle, 6 (2006) 269--284. **

**Ceva collineations, 7 (2007) 67--72. **

**Fixed points and fixed lines of Ceva collineations, 7 (2007) 159--168. **

**Second-degree involutory symbolic substitutions, 8 (2008) 175--182. **

**Mappings associated with vertex triangles, 9 (2009) 27--39. **

**Trilinear distance inequalities for the symmedian point, the centroid, and other triangle centers, 10 (2010) 135--139. **

** (with P. J. C. Moses) Perspective isoconjugate triangle pairs, Hofstadter pairs, and crosssums on the nine-point circle, 11 (2011) 83--93. **

**
**** Kiss, Sandor N
**
**The orthic-of-intouch and intouch-of-orthic triangles, 6 (2006) 171--177. **

** (with P. Yiu) The touchpoints triangles and the Feuerbach hyperbolas, 14 (2014) 63--86.**

** (with Z. Kovacs) Isogonal conjugacy through a fixed point theorem, 16 (2016) 171--178.**

**A distance property of the Feuerbach point and its extension, 16 (2016) 283--290.**

**Distances among the Feuerbach points, 16 (2016) 373--379.**

** (with P. Yiu) On the Tucker circles, 17 (2017) 157--175.**

**
**** Klemm, John D.
**
** (with E. A. Weinstein) An improved inequality for the perimeter of a quadrilateral, 17 (2017) 97--100.**

**
**** Kobayashi, Kenta
**
**A recursive formula for the circumradius of the $n$-simplex, 16 (2016) 179--184. **

**
**** Konig, Joachim
**
** (with D. Nedrenco) Septic equations are solvable by 2-fold origami, 16 (2016) 193--205.**

** Koroglu, Zeyd Yusuf
**
** (with M. E. Akengin and Y. Yargic) Three natural homoteties of the nine-point circle, 13 (2013) 209--218.**

**
**** Kovac, Vjekoslav
**
**
(with H. Abraham) From electrostatic potentials to yet another triangle center, 15 (2015) 73--89.**

**
**** Kovacs, Zoltan
**
** (with S. N. Kiss) Isogonal conjugacy through a fixed point theorem, 16 (2016) 171--178.**

**
**** Krasopoulos, Panagiotis T.
**
**Kronecker theorem and a sequence of triangles, 8 (2008) 27--37. **

**
**** Krishna, Dasari Naga Vijay
**
** On the Feuerbach triangle, 17 (2017) 289--300. **

**
**** Kung, Sidney
**
** (with J. Tong) A simple construction of the golden ratio, 7 (2007) 31--32. **

**
**** Kuzmina, Anna S.
**
** An improvement of Birsan's inequalities for the sides of a triangle,
16 (2016) 81--84. **

**
**

**
****
** **
**